CHICAGO ZOOLOGICAL SOCIETY: Form 990, tax year 2011

View the entire original 990 at ProPublica ↗

Organization: CHICAGO ZOOLOGICAL SOCIETY (EIN 36-2167016)
Tax period: 2011-01-01 to 2011-12-31
Filed: 2012-09-10
IRS object ID: 201242549349300614
Schema version: 2011v1.2
Source: Download XML · Original 990 at ProPublica

Every field in the e-filed return. Faint text is the IRS element name, for citing.

Return header
Form 990
Schedule A
Schedule B
Schedule C
Schedule D
Schedule F
Schedule G
Schedule I
Schedule J
Schedule K
Schedule L
Schedule M
Schedule O

Return header ReturnHeader

Field	Value	IRS element (for citing)
Timestamp	2012-09-10T12:23:43-00:00	Timestamp
Tax Period End Date	2011-12-31	TaxPeriodEndDate

Preparer Firm PreparerFirm

Preparer Firm Business Name PreparerFirmBusinessName

Field	Value	IRS element (for citing)
Business Name Line1	Plante & Moran PLLC	BusinessNameLine1

Preparer Firm US Address PreparerFirmUSAddress

Field	Value	IRS element (for citing)
Address Line1	10 S Riverside Plaza 9th Floor	AddressLine1
City	Chicago	City
State	IL	State
ZIP Code	60606	ZIPCode

Field	Value	IRS element (for citing)
Return Type	990	ReturnType
Tax Period Begin Date	2011-01-01	TaxPeriodBeginDate

Filer Filer

Field	Value	IRS element (for citing)
EIN	362167016	EIN

Name Name

Field	Value	IRS element (for citing)
Business Name Line1	Chicago Zoological Society	BusinessNameLine1

Field	Value	IRS element (for citing)
Name Control	CHIC	NameControl
Phone	7086888400	Phone

US Address USAddress

Field	Value	IRS element (for citing)
Address Line1	3300 Golf Road	AddressLine1
City	Brookfield	City
State	IL	State
ZIP Code	60513	ZIPCode

Officer Officer

Field	Value	IRS element (for citing)
Name	Stuart D Strahl PhD	Name
Title	President and CEO	Title
Date Signed	2012-08-28	DateSigned
Authorize Third Party	true	AuthorizeThirdParty

Preparer Preparer

Field	Value	IRS element (for citing)
Phone	3122071040	Phone
Date Prepared	2012-08-28	DatePrepared

Field	Value	IRS element (for citing)
Tax Year	2011	TaxYear
Build TS	2016-02-24 21:20:13Z	BuildTS

Form 990 IRS990

Doing Business As DoingBusinessAs

Field	Value	IRS element (for citing)
Business Name Line1	Brookfield Zoo	BusinessNameLine1

Field	Value	IRS element (for citing)
Name Of Principal Officer Person	Stuart D Strahl PhD	NameOfPrincipalOfficerPerson

Address Principal Officer US AddressPrincipalOfficerUS

Field	Value	IRS element (for citing)
Address Line1	3300 Golf Road	AddressLine1
City	Brookfield	City
State	IL	State
ZIP Code	60513	ZIPCode

Field	Value	IRS element (for citing)
Gross Receipts	74950093	GrossReceipts
Group Return For Affiliates	false	GroupReturnForAffiliates
Organization501c3	X	Organization501c3
Web Site	www.czs.org	WebSite
Type Of Organization Corporation	X	TypeOfOrganizationCorporation
Year Formation	1921	YearFormation
State Legal Domicile	IL	StateLegalDomicile
Activity Or Mission Description	To inspire conservation leadership by connecting people with wildlife and nature.	ActivityOrMissionDescription
Nbr Voting Members Governing Body	50	NbrVotingMembersGoverningBody
Nbr Independent Voting Members	46	NbrIndependentVotingMembers
Total Nbr Employees	1564	TotalNbrEmployees
Total Nbr Volunteers	709	TotalNbrVolunteers
Total Gross UBI	1449324	TotalGrossUBI
Net Unrelated Business Txbl Income	34956	NetUnrelatedBusinessTxblIncome
Contributions Grants Prior Year	48362455	ContributionsGrantsPriorYear
Contributions Grants Current Year	32649811	ContributionsGrantsCurrentYear
Program Service Revenue Prior Year	15991395	ProgramServiceRevenuePriorYear
Program Service Revenue CY	14658686	ProgramServiceRevenueCY
Investment Income Prior Year	2618179	InvestmentIncomePriorYear
Investment Income Current Year	1801761	InvestmentIncomeCurrentYear
Other Revenue Prior Year	11124060	OtherRevenuePriorYear
Other Revenue Current Year	10389421	OtherRevenueCurrentYear
Total Revenue Prior Year	78096089	TotalRevenuePriorYear
Total Revenue Current Year	59499679	TotalRevenueCurrentYear
Grants And Similar Amnts Prior Year	167073	GrantsAndSimilarAmntsPriorYear
Grants And Similar Amnts CY	192514	GrantsAndSimilarAmntsCY
Benefits Paid To Members CY	0	BenefitsPaidToMembersCY
Salaries Etc Prior Year	37124959	SalariesEtcPriorYear
Salaries Etc Current Year	37138464	SalariesEtcCurrentYear
Total Prof Fundrsng Exp Prior Year	75000	TotalProfFundrsngExpPriorYear
Total Prof Fundrsng Exp CY	115702	TotalProfFundrsngExpCY
Total Fundrsng Exp Current Year	2604088	TotalFundrsngExpCurrentYear
Other Expense Prior Year	26110344	OtherExpensePriorYear
Other Expenses Current Year	25599879	OtherExpensesCurrentYear
Total Expenses Prior Year	63477376	TotalExpensesPriorYear
Total Expenses Current Year	63046559	TotalExpensesCurrentYear
Revenues Less Expenses Prior Year	14618713	RevenuesLessExpensesPriorYear
Revenues Less Expenses CY	-3546880	RevenuesLessExpensesCY
Total Assets BOY	224208432	TotalAssetsBOY
Total Assets EOY	210369000	TotalAssetsEOY
Total Liabilities BOY	68476877	TotalLiabilitiesBOY
Total Liabilities EOY	60942000	TotalLiabilitiesEOY
Net Assets Or Fund Balances BOY	155731555	NetAssetsOrFundBalancesBOY
Net Assets Or Fund Balances EOY	149427000	NetAssetsOrFundBalancesEOY
Info In Schedule O Part III	X	InfoInScheduleOPartIII
Mission Description	To inspire conservation leadership by connecting people with wildlife and nature.	MissionDescription
Significant New Program Services	false	SignificantNewProgramServices
Significant Change	false	SignificantChange
Expense	14860076	Expense
Revenue	2362094	Revenue
Description	Center for Science and Animal Well-Being CSAW More than 2500 ambassadors of the animal kingdom provide our visitors with a rare opportunity to see species from around the globe. Expert care of these ambassadors is a time-honored tradition at CZS, where innovations in husbandry techniques and pioneering breeding programs are part of the cutting edge culture of excellence. Staff in the CSAW integrate disciplines such as endocrinology, population biology, behavioral science, nutrition and veterinary science to determine the best ways to provide and continuously care for the animals. They also incorporate models and practices from around the world, and from an array of animal care professionals, to develop the best possible zoo-based animal care and management practices.	Description

Activity2 Activity2

Field	Value	IRS element (for citing)
Expense	9876000	Expense
Description	Care of Buildings and Grounds The CZS maintains over 214 acres of land and 72 buildings to exhibit over 2,500 animals. Guests see examples of our environmentally sound policies throughout the Zoo grounds including energy efficient cooling systems, plentiful recycling containers and clean burning natural gas vehicles.	Description

Activity3 Activity3

Field	Value	IRS element (for citing)
Expense	8232000	Expense
Revenue	6353282	Revenue
Description	Visitor Services Brookfield Zoo served over 2.1 million visitors in 2011, providing them with transportation, shops and restaurants. In addition to motorized, narrated educational tours throughout the park, the Zoo offers strollers, wheelchairs, wagons, etc. to help visitors have a more enjoyable visit. The shops make available goods which promote an interest in and understanding of the natural world and an awareness of how people around the world co-exist with the animals and the ecosystems where they live, and how choices made by humans impact the animals and the environment. The restaurants allow our visitors to stay in the park for lunch and expand the time they can enjoy the park. Visitor Services works closely with educators and designers to develop food packaging programs and select products which convey education and conservation related messages. Visitor Services also provides opportunities for families, businesses, senior groups, social clubs, etc. to hold special outings at the park where they receive admission, special tours and interaction with zoo staff.	Description

Field	Value	IRS element (for citing)
Total Of Other Program Service Exp	21637000	TotalOfOtherProgramServiceExp
Total Of Other Program Service Grnt	192514	TotalOfOtherProgramServiceGrnt
Total Of Other Program Service Rev	8956543	TotalOfOtherProgramServiceRev
Total Program Service Expense	54605076	TotalProgramServiceExpense
Described In501 C3	true	DescribedIn501C3
Schedule B Required	true	ScheduleBRequired
Political Activities	false	PoliticalActivities
Lobbying Activities	true	LobbyingActivities
Donor Advised Funds	true	DonorAdvisedFunds
Conservation Easements	false	ConservationEasements
Collections Of Art	true	CollectionsOfArt
Credit Counseling	true	CreditCounseling
Term Or Permanent Endowments	true	TermOrPermanentEndowments
Report Land Bldg Equip	true	ReportLandBldgEquip
Report Invest Oth Securities	false	ReportInvestOthSecurities
Report Prog Rel Invest	false	ReportProgRelInvest
Report Other Assets	false	ReportOtherAssets
Report Other Liabilities	true	ReportOtherLiabilities
Report Fin48 Footnote	true	ReportFin48Footnote
Independent Audit Financial Stmt	true	IndependentAuditFinancialStmt
Consolidated Audit Financial Stmt	false	ConsolidatedAuditFinancialStmt
School	false	School
Foreign Office	false	ForeignOffice
Foreign Activities	true	ForeignActivities
More Than5000 K To Organizations	true	MoreThan5000KToOrganizations
More Than5000 K To Individuals	true	MoreThan5000KToIndividuals
Professional Fundraising	true	ProfessionalFundraising
Fundraising Activities	true	FundraisingActivities
Gaming	true	Gaming
Hospital	false	Hospital
Grants To Organizations	true	GrantsToOrganizations
Grants To Individuals	true	GrantsToIndividuals
Schedule J Required	true	ScheduleJRequired
Tax Exempt Bonds	true	TaxExemptBonds
Invest Tax Exempt Bonds	false	InvestTaxExemptBonds
Escrow Account	false	EscrowAccount
On Behalf Of Issuer	false	OnBehalfOfIssuer
Excess Benefit Transaction	false	ExcessBenefitTransaction
Prior Excess Benefit Transaction	false	PriorExcessBenefitTransaction
Loan To Officer Or DQP	false	LoanToOfficerOrDQP
Grant To Related Person	false	GrantToRelatedPerson
Bsnss Rltnshp With Organization	true	BsnssRltnshpWithOrganization
Bsnss Rltnshp Thru Family Member	true	BsnssRltnshpThruFamilyMember
Officer Entity With Bsnss Rltnshp	true	OfficerEntityWithBsnssRltnshp
Deductible Non Cash Contributions	true	DeductibleNonCashContributions
Deductible Contributions Of Art	true	DeductibleContributionsOfArt
Terminated	false	Terminated
Partial Liquidation	false	PartialLiquidation
Disregarded Entity	false	DisregardedEntity
Related Entity	false	RelatedEntity
Related Org Controlled Entity	false	RelatedOrgControlledEntity
Transaction Related Entity	false	TransactionRelatedEntity
Transfers To Exempt Non Chrtbl Org	false	TransfersToExemptNonChrtblOrg
Activities Conducted Partnership	false	ActivitiesConductedPartnership
Schedule O Required	true	ScheduleORequired
Info In Schedule O Part V	X	InfoInScheduleOPartV
Number Forms Transmitted With1096	163	NumberFormsTransmittedWith1096
Number W2 G Included	0	NumberW2GIncluded
Compliance With Backup Witholding	true	ComplianceWithBackupWitholding
Number Of Employees	1564	NumberOfEmployees
Employment Tax Returns Filed	true	EmploymentTaxReturnsFiled
Unrelated Business Income	true	UnrelatedBusinessIncome
Form990-T Filed	true	Form990-TFiled
Foreign Financial Account	false	ForeignFinancialAccount
Prohibited Tax Shelter Trans	false	ProhibitedTaxShelterTrans
Taxable Party Notification	false	TaxablePartyNotification
Non Deductible Contributions	false	NonDeductibleContributions
Quid Pro Quo Contributions	true	QuidProQuoContributions
Quid Pro Quo Disclosure	true	QuidProQuoDisclosure
Form8282 Property Disposed Of	false	Form8282PropertyDisposedOf
Funds To Pay Premiums	false	FundsToPayPremiums
Premiums Paid	false	PremiumsPaid
Form1098 C Filed	false	Form1098CFiled
Indoor Tanning Services	false	IndoorTanningServices
Info In Schedule O Part VI	X	InfoInScheduleOPartVI
Nbr Voting Governing Body Members	50	NbrVotingGoverningBodyMembers
Number Independent Voting Members	46	NumberIndependentVotingMembers
Family Or Business Relationship	true	FamilyOrBusinessRelationship
Delegation Of Management Duties	false	DelegationOfManagementDuties
Changes To Organizing Docs	false	ChangesToOrganizingDocs
Material Diversion Or Misuse	false	MaterialDiversionOrMisuse
Members Or Stockholders	true	MembersOrStockholders
Election Of Board Members	true	ElectionOfBoardMembers
Decisions Subject To Approval	false	DecisionsSubjectToApproval
Minutes Of Governing Body	true	MinutesOfGoverningBody
Minutes Of Committees	true	MinutesOfCommittees
Officer Mailing Address	false	OfficerMailingAddress
Local Chapters	false	LocalChapters
Form990 Provided To Governing Body	true	Form990ProvidedToGoverningBody
Conflict Of Interest Policy	true	ConflictOfInterestPolicy
Annual Disclosure Covered Persons	true	AnnualDisclosureCoveredPersons
Regular Monitoring Enforcement	true	RegularMonitoringEnforcement
Whistleblower Policy	true	WhistleblowerPolicy
Document Retention Policy	true	DocumentRetentionPolicy
Compensation Process CEO	true	CompensationProcessCEO
Compensation Process Other	true	CompensationProcessOther
Investment In Joint Venture	false	InvestmentInJointVenture
States Where Copy Of Return Is Filed	WI	StatesWhereCopyOfReturnIsFiled
States Where Copy Of Return Is Filed	IL	StatesWhereCopyOfReturnIsFiled
States Where Copy Of Return Is Filed	FL	StatesWhereCopyOfReturnIsFiled
Upon Request	X	UponRequest

The Books Are In Care Of TheBooksAreInCareOf

Field	Value	IRS element (for citing)
Name Person	Kenneth S Kaduk	NamePerson
Telephone Number	7086888315	TelephoneNumber

Address US AddressUS

Field	Value	IRS element (for citing)
Address Line1	3300 Golf Road	AddressLine1
City	Brookfield	City
State	IL	State
ZIP Code	60513	ZIPCode

Form990 Part VII Section A Form990PartVIISectionA (62 entries)

TitleTitle	Average Hours Per WeekAverageHoursPerWeek	Individual Trustee Or DirectorIndividualTrusteeOrDirector	OfficerOfficer	Reportable Comp From OrganizationReportableCompFromOrganization	Reportable Comp From Related OrgsReportableCompFromRelatedOrgs	Other CompensationOtherCompensation	Key EmployeeKeyEmployee	Highest Compensated EmployeeHighestCompensatedEmployee
William C Kunkler III
Chairman of the Board	002.00	X	X	0	0	0
Corwith Hamill
Honorary Chairman of the Board	002.00	X	X	0	0	0
John P Grube
Deputy Chairman of the Board	002.00	X	X	0	0	0
Stephen P Bent
Vice-Chairman of the Board	002.00	X	X	0	0	0
Elizabeth Hamill Bramsen
Vice-Chairman of the Board	002.00	X	X	0	0	0
Merrick M Elfman
Vice-Chairman of the Board	002.00	X	X	0	0	0
Dennis J Keller
Vice-Chairman of the Board	002.00	X	X	0	0	0
John W Taylor III
Vice-Chairman of the Board	002.00	X	X	0	0	0
Cherryl T Thomas
Vice-Chairman of the Board	002.00	X	X	0	0	0
Michael P Emmert
Treasurer	002.00	X	X	0	0	0
Randall G Vickery
Secretary	002.00	X	X	0	0	0
Stuart D Strahl PhD
President and CEO	040.00	X	X	409821	0	26782
Stuart B Abelson
Trustee	002.00	X		0	0	0
Nathalie Alberts
Trustee	002.00	X		0	0	0
Cushman L Andrews
Trustee	002.00	X		0	0	0
John C Barron
Trustee	002.00	X		0	0	0
Robert M Beavers Jr
Trustee	002.00	X		0	0	0
Edward McCormick Blair Jr
Trustee	002.00	X		0	0	0
John A Carpenter
Trustee	002.00	X		0	0	0
Shirley J Daly
Trustee	002.00	X		0	0	0
Lawrence E DeMar
Trustee	002.00	X		0	0	0
Vicki L DeMar
Trustee	002.00	X		0	0	0
Michael F DeSantiago
Trustee	002.00	X		0	0	0
Joan M Etten-Krall
Trustee	002.00	X		0	0	0
Thomas L Fisher
Trustee	002.00	X		0	0	0
Arthur J Fogel
Trustee	002.00	X		0	0	0
Bert A Getz Jr
Trustee	002.00	X		0	0	0
Graham C Grady
Trustee	002.00	X		0	0	0
Philip Lee Harris
Trustee	002.00	X		0	0	0
Christine E Holden
Trustee	002.00	X		0	0	0
William L Hood Jr
Trustee	002.00	X		0	0	0
Heidi A Huizenga
Trustee	002.00	X		0	0	0
Jill VJavors
Trustee	002.00	X		0	0	0
Barbara Levy Kipper
Trustee	002.00	X		0	0	0
Angelo C Kleronomos
Trustee	002.00	X		0	0	0
Fred A Krehbiel
Trustee	002.00	X		0	0	0
William O Lipinski
Trustee	002.00	X		0	0	0
Mary Ann S MacLean
Trustee	002.00	X		0	0	0
Jerry Manne
Trustee	002.00	X		0	0	0
Grant G McCullagh
Trustee	002.00	X		0	0	0
Brett N McGinnis
Trustee	002.00	X		0	0	0
Christian B McGrath
Trustee	002.00	X		0	0	0
Andrew J McKenna Jr
Trustee	002.00	X		0	0	0
Susan A Pipal
Trustee	002.00	X		0	0	0
Toni Reed Preckwinkle
Trustee	002.00	X		0	0	0
Philip J Rock
Trustee	002.00	X		0	0	0
Mark G Sander
Trustee	002.00	X		0	0	0
Nan Schaffer DVM
Trustee	002.00	X		0	0	0
Kathryn Babcock Shaffer
Trustee	002.00	X		0	0	0
Kenneth N Thompson
Trustee	002.00	X		0	0	0
William E Thonn
Trustee	002.00	X		0	0	0
Christopher D Traut
Trustee	002.00	X		0	0	0
Susan E Ahern
Trustee	002.00	X		0	0	0
Cindy Zeigler
Sr. VP Institutional Advancement	040.00			252970	0	4296	X
Dr Alejandro Grajal
Sr. VP Conservation, Educ. and Training	040.00			185599	0	21238	X
Kenneth S Kaduk
Sr. VP Finance Admin.	040.00			183892	0	18346	X
Frank W Zeigler
Sr. VP Collections and Animal Care	040.00			167630	0	19809	X
Sarah Breen-Bartecki
VP Conservation Funding Initiatives	040.00			167884	0	10621		X
Matthew Mayer
VP Govt Affairs	040.00			164872	0	8165		X
Terrence Sykes
VP Development	040.00			163245	0	20255		X
Brian Krockey
Sr. Director Food Svc. Operations	040.00			155550	0	16895		X
Anna Clarke
VP Marketing Communications	040.00			145305	0	6906		X

Field	Value	IRS element (for citing)
Total Reportable Comp From Org	1996768	TotalReportableCompFromOrg
Total Other Compensation	153313	TotalOtherCompensation
Number Individuals GT100 K	23	NumberIndividualsGT100K
Formers Listed	false	FormersListed
Total Comp GT150 K	true	TotalCompGT150K
Compensation From Other Sources	false	CompensationFromOtherSources

Contractor Compensation ContractorCompensation (5 entries)

Address Line1AddressOfContractor/AddressUS/AddressLine1	CityAddressOfContractor/AddressUS/City	StateAddressOfContractor/AddressUS/State	ZIP CodeAddressOfContractor/AddressUS/ZIPCode	Description Of ServicesDescriptionOfServices	CompensationCompensation
Murphy and Miller
600 W Taylor St	Chicago	IL	60607	Construction, HVAC repairs and maint.	1074576
Freeborn and Peters LLP
311 S Wacker Dr Suite 3000	Chicago	IL	60606	Legal Services	703361
University of Illinois
2001 S Lincoln Ave	Urbana	IL	61802	Veterinary, Pathology and Research Svcs.	507077
Cemrock Landscapes
4790 So Julian Ave	Tucson	AZ	85714	Exhibit Renovation	439954
PBA Inc
PO Box 2023	Carol Stream	IL	60132	benefits administration	420721

Field	Value	IRS element (for citing)
Number Of Contractors GT100 K	40	NumberOfContractorsGT100K
Membership Dues	8401320	MembershipDues
Fundraising Events	1628786	FundraisingEvents
Government Grants	16256095	GovernmentGrants
All Other Contributions	6363610	AllOtherContributions
Noncash Contributions	981516	NoncashContributions
Total Contributions	32649811	TotalContributions

Program Service Revenue ProgramServiceRevenue (5 entries)

DescriptionDescription	Business CodeBusinessCode	Total Revenue ColumnTotalRevenueColumn	Related Or Exempt Function IncomeRelatedOrExemptFunctionIncome	Unrelated Business RevenueUnrelatedBusinessRevenue
General Admissions	900099	5114939	5114939
Memberships	900099	2233505	2233505
Visitor Services	900099	3303676	1854352	1449324
Admissions-Internal Attractions	900099	2217724	2217724
Sponsorship Agreements	900099	954895	954895

Total Oth Program Service Revenue TotalOthProgramServiceRevenue

Field	Value	IRS element (for citing)
Total Revenue Column	833947	TotalRevenueColumn
Related Or Exempt Function Income	833947	RelatedOrExemptFunctionIncome

Field	Value	IRS element (for citing)
Total Program Service Revenue	14658686	TotalProgramServiceRevenue

Investment Income InvestmentIncome

Field	Value	IRS element (for citing)
Total Revenue Column	1089178	TotalRevenueColumn
Exclusion	$1,089,178	ExclusionAmount

Income From Invest Bond Proceeds IncomeFromInvestBondProceeds

Field	Value	IRS element (for citing)
Total Revenue Column	796	TotalRevenueColumn
Exclusion	$796	ExclusionAmount

Gross Rents GrossRents

Field	Value	IRS element (for citing)
Real	16350	Real

Rental Income Or Loss RentalIncomeOrLoss

Field	Value	IRS element (for citing)
Real	16350	Real

Net Rental Income Or Loss NetRentalIncomeOrLoss

Field	Value	IRS element (for citing)
Total Revenue Column	16350	TotalRevenueColumn
Exclusion	$16,350	ExclusionAmount

Gross Amount Sales Assets GrossAmountSalesAssets

Field	Value	IRS element (for citing)
Securities	11984069	Securities

Less Cost Oth Basis Sales Expenses LessCostOthBasisSalesExpenses

Field	Value	IRS element (for citing)
Securities	11272282	Securities

Gain Or Loss GainOrLoss

Field	Value	IRS element (for citing)
Securities	711787	Securities

Net Gain Or Loss Investments NetGainOrLossInvestments

Field	Value	IRS element (for citing)
Total Revenue Column	711787	TotalRevenueColumn
Exclusion	$711,787	ExclusionAmount

Field	Value	IRS element (for citing)
Gross Income Fundraising Events	340533	GrossIncomeFundraisingEvents
Cntrbtns Rprtd Fundraising Events	1628786	CntrbtnsRprtdFundraisingEvents
Fundraising Direct Expenses	753365	FundraisingDirectExpenses

Net Income From Fundraising Events NetIncomeFromFundraisingEvents

Field	Value	IRS element (for citing)
Total Revenue Column	-412832	TotalRevenueColumn
Exclusion	-$412,832	ExclusionAmount

Field	Value	IRS element (for citing)
Gross Income Gaming	51800	GrossIncomeGaming
Gaming Direct Expenses	7920	GamingDirectExpenses

Net Income From Gaming NetIncomeFromGaming

Field	Value	IRS element (for citing)
Total Revenue Column	43880	TotalRevenueColumn
Exclusion	$43,880	ExclusionAmount

Field	Value	IRS element (for citing)
Gross Sales Of Inventory	11880982	GrossSalesOfInventory
Cost Of Goods Sold	3416847	CostOfGoodsSold

Net Income Or Loss NetIncomeOrLoss

Field	Value	IRS element (for citing)
Total Revenue Column	8464135	TotalRevenueColumn
Related Or Exempt Function Income	3013233	RelatedOrExemptFunctionIncome
Exclusion	$5,450,902	ExclusionAmount

Other Revenue Misc OtherRevenueMisc (2 entries)

DescriptionDescription	Business CodeBusinessCode	Total Revenue ColumnTotalRevenueColumn	ExclusionExclusionAmount
Visitor Parking	900099	2028080	$2,028,080
In park Transportation Rentals	900099	249808	$249,808

Field	Value	IRS element (for citing)
Total Other Revenue	2277888	TotalOtherRevenue

Total Revenue TotalRevenue

Field	Value	IRS element (for citing)
Total Revenue Column	59499679	TotalRevenueColumn
Related Or Exempt Function Income	16222595	RelatedOrExemptFunctionIncome
Unrelated Business Revenue	1449324	UnrelatedBusinessRevenue
Exclusion	$9,177,949	ExclusionAmount

Grants To Domestic Orgs GrantsToDomesticOrgs

Field	Value	IRS element (for citing)
Total	72179	Total
Program Services	72179	ProgramServices

Grants To Domestic Individuals GrantsToDomesticIndividuals

Field	Value	IRS element (for citing)
Total	9500	Total
Program Services	9500	ProgramServices

Foreign Grants ForeignGrants

Field	Value	IRS element (for citing)
Total	110835	Total
Program Services	110835	ProgramServices

Benefits To Members BenefitsToMembers

Field	Value	IRS element (for citing)
Total	0	Total

Comp Current Officers Directors CompCurrentOfficersDirectors

Field	Value	IRS element (for citing)
Total	1592212	Total
Program Services	628729	ProgramServices
Management And General	414413	ManagementAndGeneral
Fundraising	549070	Fundraising

Comp Disqual Persons CompDisqualPersons

Field	Value	IRS element (for citing)
Total	0	Total

Other Salaries And Wages OtherSalariesAndWages

Field	Value	IRS element (for citing)
Total	27674291	Total
Program Services	24330147	ProgramServices
Management And General	2109809	ManagementAndGeneral
Fundraising	1234335	Fundraising

Pension Plan Contributions PensionPlanContributions

Field	Value	IRS element (for citing)
Total	594900	Total
Program Services	523512	ProgramServices
Management And General	45212	ManagementAndGeneral
Fundraising	26176	Fundraising

Other Employee Benefits OtherEmployeeBenefits

Field	Value	IRS element (for citing)
Total	4940197	Total
Program Services	4099173	ProgramServices
Management And General	579929	ManagementAndGeneral
Fundraising	261095	Fundraising

Payroll Taxes PayrollTaxes

Field	Value	IRS element (for citing)
Total	2336864	Total
Program Services	2056440	ProgramServices
Management And General	177602	ManagementAndGeneral
Fundraising	102822	Fundraising

Fees For Services Management FeesForServicesManagement

Field	Value	IRS element (for citing)
Total	0	Total

Fees For Services Legal FeesForServicesLegal

Field	Value	IRS element (for citing)
Total	632465	Total
Management And General	632465	ManagementAndGeneral

Fees For Services Accounting FeesForServicesAccounting

Field	Value	IRS element (for citing)
Total	64446	Total
Management And General	64446	ManagementAndGeneral

Fees For Services Lobbying FeesForServicesLobbying

Field	Value	IRS element (for citing)
Total	56262	Total
Program Services	11262	ProgramServices
Management And General	45000	ManagementAndGeneral

Fees For Services Prof Fundraising FeesForServicesProfFundraising

Field	Value	IRS element (for citing)
Total	115702	Total
Fundraising	115702	Fundraising

Fees For Services Invst Mgmnt Fees FeesForServicesInvstMgmntFees

Field	Value	IRS element (for citing)
Total	99375	Total
Management And General	99375	ManagementAndGeneral

Fees For Services Other FeesForServicesOther

Field	Value	IRS element (for citing)
Total	3701814	Total
Program Services	3468739	ProgramServices
Management And General	215450	ManagementAndGeneral
Fundraising	17625	Fundraising

Advertising Advertising

Field	Value	IRS element (for citing)
Total	1498659	Total
Program Services	1498659	ProgramServices

Office Expenses OfficeExpenses

Field	Value	IRS element (for citing)
Total	5284732	Total
Program Services	4959870	ProgramServices
Management And General	208347	ManagementAndGeneral
Fundraising	116515	Fundraising

Information Technology InformationTechnology

Field	Value	IRS element (for citing)
Total	708029	Total
Program Services	180308	ProgramServices
Management And General	508855	ManagementAndGeneral
Fundraising	18866	Fundraising

Royalties Royalties

Field	Value	IRS element (for citing)
Total	27965	Total
Program Services	27965	ProgramServices

Occupancy Occupancy

Field	Value	IRS element (for citing)
Total	2656043	Total
Program Services	2345573	ProgramServices
Management And General	286536	ManagementAndGeneral
Fundraising	23934	Fundraising

Travel Travel

Field	Value	IRS element (for citing)
Total	270572	Total
Program Services	233598	ProgramServices
Management And General	12503	ManagementAndGeneral
Fundraising	24471	Fundraising

Travel Entrtnmnt Public Officials TravelEntrtnmntPublicOfficials

Field	Value	IRS element (for citing)
Total	0	Total

Conferences Meetings ConferencesMeetings

Field	Value	IRS element (for citing)
Total	285346	Total
Program Services	148299	ProgramServices
Management And General	35873	ManagementAndGeneral
Fundraising	101174	Fundraising

Interest Interest

Field	Value	IRS element (for citing)
Total	1090851	Total
Program Services	1090851	ProgramServices

Payments To Affiliates PaymentsToAffiliates

Field	Value	IRS element (for citing)
Total	0	Total

Depreciation Depletion DepreciationDepletion

Field	Value	IRS element (for citing)
Total	7517254	Total
Program Services	7517254	ProgramServices

Insurance Insurance

Field	Value	IRS element (for citing)
Total	404122	Total
Program Services	62218	ProgramServices
Management And General	341904	ManagementAndGeneral

Other Expenses OtherExpenses (3 entries)

DescriptionDescription	TotalTotal	Program ServicesProgramServices
Change in Market Valuation of Swap Agreements	663206	663206
Revenue Bond Maintenance Fees	377009	377009
Loss on Retirement of Fixed Assets	73507	73507

All Other Expenses AllOtherExpenses

Field	Value	IRS element (for citing)
Total	188222	Total
Program Services	116243	ProgramServices
Management And General	59676	ManagementAndGeneral
Fundraising	12303	Fundraising

Total Functional Expenses TotalFunctionalExpenses

Field	Value	IRS element (for citing)
Total	63046559	Total
Program Services	54605076	ProgramServices
Management And General	5837395	ManagementAndGeneral
Fundraising	2604088	Fundraising

Cash Non Interest Bearing CashNonInterestBearing

Field	Value	IRS element (for citing)
BOY	570210	BOY
EOY	929687	EOY

Savings And Temp Cash Investments SavingsAndTempCashInvestments

Field	Value	IRS element (for citing)
BOY	34885623	BOY
EOY	24592503	EOY

Pledges And Grants Receivable PledgesAndGrantsReceivable

Field	Value	IRS element (for citing)
BOY	19787618	BOY
EOY	13663416	EOY

Accounts Receivable AccountsReceivable

Field	Value	IRS element (for citing)
BOY	2290110	BOY
EOY	396903	EOY

Inventories For Sale Or Use InventoriesForSaleOrUse

Field	Value	IRS element (for citing)
BOY	912812	BOY
EOY	1001631	EOY

Prepaid Expenses Deferred Charges PrepaidExpensesDeferredCharges

Field	Value	IRS element (for citing)
BOY	352791	BOY
EOY	530273	EOY

Field	Value	IRS element (for citing)
Land Buildings Equipment Basis	228011329	LandBuildingsEquipmentBasis
Land Bldg Equipment Accum Deprec	97220119	LandBldgEquipmentAccumDeprec

Land Buildings Equipment Basis Net LandBuildingsEquipmentBasisNet

Field	Value	IRS element (for citing)
BOY	131835727	BOY
EOY	130791210	EOY

Investments Pub Traded Securities InvestmentsPubTradedSecurities

Field	Value	IRS element (for citing)
BOY	33133000	BOY
EOY	37965000	EOY

Investments Other Securities InvestmentsOtherSecurities

Field	Value	IRS element (for citing)
EOY	130000	EOY

Other Assets Total OtherAssetsTotal

Field	Value	IRS element (for citing)
BOY	440541	BOY
EOY	368377	EOY

Total Assets TotalAssets

Field	Value	IRS element (for citing)
BOY	224208432	BOY
EOY	210369000	EOY

Accounts Payable Accrued Expenses AccountsPayableAccruedExpenses

Field	Value	IRS element (for citing)
BOY	5768366	BOY
EOY	5834091	EOY

Deferred Revenue DeferredRevenue

Field	Value	IRS element (for citing)
BOY	5682229	BOY
EOY	5887402	EOY

Tax Exempt Bond Liabilities TaxExemptBondLiabilities

Field	Value	IRS element (for citing)
BOY	47245000	BOY
EOY	37465000	EOY

Escrow Account Liability EscrowAccountLiability

Field	Value	IRS element (for citing)
BOY	60831	BOY
EOY	63020	EOY

Other Liabilities OtherLiabilities

Field	Value	IRS element (for citing)
BOY	9720451	BOY
EOY	11692487	EOY

Total Liabilities TotalLiabilities

Field	Value	IRS element (for citing)
BOY	68476877	BOY
EOY	60942000	EOY

Field	Value	IRS element (for citing)
Follow SFAS117	X	FollowSFAS117

Unrestricted Net Assets UnrestrictedNetAssets

Field	Value	IRS element (for citing)
BOY	119179603	BOY
EOY	121729000	EOY

Temporarily Restricted Net Assets TemporarilyRestrictedNetAssets

Field	Value	IRS element (for citing)
BOY	29248467	BOY
EOY	20395000	EOY

Permanently Restricted Net Assets PermanentlyRestrictedNetAssets

Field	Value	IRS element (for citing)
BOY	7303485	BOY
EOY	7303000	EOY

Total Net Assets Fund Balances TotalNetAssetsFundBalances

Field	Value	IRS element (for citing)
BOY	155731555	BOY
EOY	149427000	EOY

Total Liab Net Assets Fund Balances TotalLiabNetAssetsFundBalances

Field	Value	IRS element (for citing)
BOY	224208432	BOY
EOY	210369000	EOY

Field	Value	IRS element (for citing)
Info In Schedule O Part XI	X	InfoInScheduleOPartXI
Reconcilation Revenue Expenses	-3546880	ReconcilationRevenueExpenses
Reconcilation Other Changes	-2757675	ReconcilationOtherChanges
Method Of Accounting Accrual	X	MethodOfAccountingAccrual
Accountant Compile Or Review	false	AccountantCompileOrReview
FS Audited	true	FSAudited
Audit Committee	true	AuditCommittee
Financial Statement Separate	X	FinancialStatementSeparate
Federal Grant Audit Required	true	FederalGrantAuditRequired
Federal Grant Audit Performed	true	FederalGrantAuditPerformed

Schedule A IRS990ScheduleA

Field	Value	IRS element (for citing)
Publicly Supported Org170b1 Avi	X	PubliclySupportedOrg170b1Avi

Gifts Grants Contrib Received170 GiftsGrantsContribReceived170

Field	Value	IRS element (for citing)
Current Tax Year Minus4 Years	25842204	CurrentTaxYearMinus4Years
Current Tax Year Minus3 Years	19205470	CurrentTaxYearMinus3Years
Current Tax Year Minus2 Years	13524906	CurrentTaxYearMinus2Years
Current Tax Year Minus1 Year	13884261	CurrentTaxYearMinus1Year
Current Tax Year	16910890	CurrentTaxYear
Total	89367731	Total

Tax Rev Levied For Org Benefit170 TaxRevLeviedForOrgBenefit170

Field	Value	IRS element (for citing)
Current Tax Year Minus4 Years	27351867	CurrentTaxYearMinus4Years
Current Tax Year Minus3 Years	17071581	CurrentTaxYearMinus3Years
Current Tax Year Minus2 Years	17661814	CurrentTaxYearMinus2Years
Current Tax Year Minus1 Year	15624369	CurrentTaxYearMinus1Year
Current Tax Year	15738921	CurrentTaxYear
Total	93448552	Total

Total170 Total170

Field	Value	IRS element (for citing)
Current Tax Year Minus4 Years	53194071	CurrentTaxYearMinus4Years
Current Tax Year Minus3 Years	36277051	CurrentTaxYearMinus3Years
Current Tax Year Minus2 Years	31186720	CurrentTaxYearMinus2Years
Current Tax Year Minus1 Year	29508630	CurrentTaxYearMinus1Year
Current Tax Year	32649811	CurrentTaxYear
Total	182816283	Total

Field	Value	IRS element (for citing)
Amounts Subst Contributors Total	5893437	AmountsSubstContributorsTotal
Public Support Total170	176922846	PublicSupportTotal170

Gross Investment Income170 GrossInvestmentIncome170

Field	Value	IRS element (for citing)
Current Tax Year Minus4 Years	633182	CurrentTaxYearMinus4Years
Current Tax Year Minus3 Years	1148318	CurrentTaxYearMinus3Years
Current Tax Year Minus2 Years	498907	CurrentTaxYearMinus2Years
Current Tax Year Minus1 Year	602399	CurrentTaxYearMinus1Year
Current Tax Year	1089974	CurrentTaxYear
Total	3972780	Total

Net UBI NetUBI

Field	Value	IRS element (for citing)
Current Tax Year Minus3 Years	39294	CurrentTaxYearMinus3Years
Current Tax Year Minus2 Years	20727	CurrentTaxYearMinus2Years
Current Tax Year Minus1 Year	24317	CurrentTaxYearMinus1Year
Current Tax Year	74240	CurrentTaxYear
Total	158578	Total

Field	Value	IRS element (for citing)
Total Support	186947641	TotalSupport
Gross Receipts From Admissions Etc	159835852	GrossReceiptsFromAdmissionsEtc
Public Support Pertcentage170	0.94640	PublicSupportPertcentage170
Public Support Pertcent Prior Year	0.94520	PublicSupportPertcentPriorYear
Thirty Three Percnt Tests CY170	X	ThirtyThreePercntTestsCY170
Public Support Percentage509	0.00000	PublicSupportPercentage509
Investment Income Percentage	0.00000	InvestmentIncomePercentage

Schedule B IRS990ScheduleB

Contributor Info ContributorInfo

Field	Value	IRS element (for citing)
Contributor Number	RESTRICTED	ContributorNumber

Contributor Name Business ContributorNameBusiness

Field	Value	IRS element (for citing)
Business Name Line1	RESTRICTED	BusinessNameLine1

Contributor Address US ContributorAddressUS

Field	Value	IRS element (for citing)
Address Line1	RESTRICTED	AddressLine1
Address Line2	RESTRICTED	AddressLine2
City	RESTRICTED	City
State	RESTRICTED	State
ZIP Code	RESTRICTED	ZIPCode

Field	Value	IRS element (for citing)
Aggregate Contributions	RESTRICTED	AggregateContributions

Schedule C IRS990ScheduleC

Field	Value	IRS element (for citing)
Volunteers	true	Volunteers
Paid Staff Or Management	true	PaidStaffOrManagement
Media Advertisements	false	MediaAdvertisements
Mailings Members	false	MailingsMembers
Publications Or Broadcast	false	PublicationsOrBroadcast
Grants Other Organizations	false	GrantsOtherOrganizations
Direct Contact Legislators	true	DirectContactLegislators
Direct Contact Legislators	$115,778	DirectContactLegislatorsAmount
Rallies Demonstrations	false	RalliesDemonstrations
Other Activities	false	OtherActivities
Total Lobbying Expenditures IIB	115778	TotalLobbyingExpendituresIIB
Not Described In501c3	false	NotDescribedIn501c3

Form990 Schedule C Part IV Form990ScheduleCPartIV (4 entries)

IdentifierIdentifier	Return ReferenceReturnReference	ExplanationExplanation
II-B	Line 1A-J	This Chicago Zoological Society is a private nonprofit organization that operates Brookfield Zoo on land owned by the Forest Preserve District of Cook County. Brookfield Zoo was created through an act of the Illinois Legislature and the Society annually receives partial funding from Cook County to maintain and operate the Zoo. Occasionally, the laws and regulations under which the Society was organized and is funded and operated require updating. The Society may
II-B	Line 1A-J contd	advise and assist appropriate legislative bodies in this activity. It may also advocate the adoption or rejection of legislation. By virtue of a management agreement with the District, the Society is periodically called upon to advise on matters of public policy. The Society also employs certain staff and consultants to communicate with the State of Illinois, federal officials, county commissioners and other government officials, to inform those parties of the activities of the Society.
II-B	Line 1A-J contd	Additionally, as required during the year, the Societys president and designated staff attend national and international professional group meetings and otherwise communicate with those groups on various matters, including the expression of opinions to appropriate congressional representatives, congressional committees or other deliberative bodies that influence public policy concerning species in danger of extinction, environmental management,
II-B	Line 1A-J contd	the biological sciences and kindred subject, and federal regulatory agency activities affecting wildlife and its management. Also, as needed from time to time, the Society contacts its members, staff and volunteers to encourage them to express their views on pending legislation that may have a direct impact on the Society and its conservation programs.

Schedule D IRS990ScheduleD

Field	Value	IRS element (for citing)
Number Funds Held	2	NumberFundsHeld
Contrib To Funds And Other Accounts	259197	ContribToFundsAndOtherAccounts
Grants Funds And Other Accounts	202655	GrantsFundsAndOtherAccounts
Aggregate Fund Value	1809650	AggregateFundValue
Disclosed Orgs Legal Control	false	DisclosedOrgsLegalControl
Disclosed For Charitable Purposes	false	DisclosedForCharitablePurposes
Collect Used For Public Exhibition	X	CollectUsedForPublicExhibition
Collect Used For Scholar Research	X	CollectUsedForScholarResearch
Collect Used For Preservation	X	CollectUsedForPreservation
Collect Used For Loan Or Exch Prgrms	X	CollectUsedForLoanOrExchPrgrms
Solicited Assets For Sale	false	SolicitedAssetsForSale
Agent Trustee Etc	false	AgentTrusteeEtc
Included On FS	true	IncludedOnFS

Current Year CurrentYear

Field	Value	IRS element (for citing)
Beginning Of Year Balance	15750000	BeginningOfYearBalance
Contributions	325000	Contributions
Investment Earnings Or Losses	-390000	InvestmentEarningsOrLosses
Other Expenditures	454000	OtherExpenditures
Administrative Expenses	32000	AdministrativeExpenses
End Of Year Balance	15199000	EndOfYearBalance

Current Year Minus1 Year CurrentYearMinus1Year

Field	Value	IRS element (for citing)
Beginning Of Year Balance	14012000	BeginningOfYearBalance
Contributions	412000	Contributions
Investment Earnings Or Losses	2092000	InvestmentEarningsOrLosses
Other Expenditures	689000	OtherExpenditures
Administrative Expenses	77000	AdministrativeExpenses
End Of Year Balance	15750000	EndOfYearBalance

Current Year Minus2 Years CurrentYearMinus2Years

Field	Value	IRS element (for citing)
Beginning Of Year Balance	11708000	BeginningOfYearBalance
Contributions	344000	Contributions
Investment Earnings Or Losses	2586000	InvestmentEarningsOrLosses
Other Expenditures	521000	OtherExpenditures
Administrative Expenses	105000	AdministrativeExpenses
End Of Year Balance	14012000	EndOfYearBalance

Current Year Minus3 Years CurrentYearMinus3Years

Field	Value	IRS element (for citing)
Beginning Of Year Balance	16350000	BeginningOfYearBalance
Contributions	672000	Contributions
Investment Earnings Or Losses	-4748000	InvestmentEarningsOrLosses
Other Expenditures	469000	OtherExpenditures
Administrative Expenses	97000	AdministrativeExpenses
End Of Year Balance	11708000	EndOfYearBalance

Field	Value	IRS element (for citing)
Board Designated EOY Balance	0.26000	BoardDesignatedEOYBalance
Permanent Endowment EOY Balance	0.48000	PermanentEndowmentEOYBalance
Term Endowment EOY Balance	0.26000	TermEndowmentEOYBalance
Endowments Held By Unrelated Orgs	true	EndowmentsHeldByUnrelatedOrgs
Endowments Held By Related Orgs	false	EndowmentsHeldByRelatedOrgs

Leasehold Improvements LeaseholdImprovements

Field	Value	IRS element (for citing)
Other Cost Or Other Basis	221372284	OtherCostOrOtherBasis
Depreciation	92939529	Depreciation
Book Value	128432755	BookValue

Equipment Equipment

Field	Value	IRS element (for citing)
Other Cost Or Other Basis	5683192	OtherCostOrOtherBasis
Depreciation	4280590	Depreciation
Book Value	1402602	BookValue

Other Land Buildings OtherLandBuildings

Field	Value	IRS element (for citing)
Other Cost Or Other Basis	955853	OtherCostOrOtherBasis
Book Value	955853	BookValue

Field	Value	IRS element (for citing)
Total Of Book Value Land Buildings	130791210	TotalOfBookValueLandBuildings

Other Liabilities OtherLiabilities (5 entries)

DescriptionDescription	AmountAmount
Accrued Post Retirement Benefit Obligation	$6,355,294
Accrued Sick Pay Benefit Obligation	$1,798,602
Charitable Gift Annuity Obligation	$409,828
Market Value of Swap Agreements	$3,127,696
Other	$1,067

Field	Value	IRS element (for citing)
Total Of Amounts	11692487	TotalOfAmounts
Total Revenue	59499679	TotalRevenue
Total Expenses	63046559	TotalExpenses
Excess Or Deficit For Year	-3546880	ExcessOrDeficitForYear
Net Unrealized GL On Investments	-1788675	NetUnrealizedGLOnInvestments
Other	-$968,445	OtherAmount
Total Adjustments	-2757120	TotalAdjustments
Excess Or Deficit Per FS	-6304000	ExcessOrDeficitPerFS
Tot Revenue Etc Audited Fincl Stmt	61942000	TotRevenueEtcAuditedFinclStmt
Net Unrealized Gains Investments	-1788675	NetUnrealizedGainsInvestments
Donated Srvc And Use Of Facilities	67353	DonatedSrvcAndUseOfFacilities
Revenue Not Rptd F990	-1721322	RevenueNotRptdF990
Revenue Subtotal	63663322	RevenueSubtotal
Investment Expenses Not Included	14489	InvestmentExpensesNotIncluded
Other Revenues Not Included	-4178132	OtherRevenuesNotIncluded
Revenue Not Rptd On Fin Stmt	-4163643	RevenueNotRptdOnFinStmt
Total Revenue Per Form990	59499679	TotalRevenuePerForm990
Tot Expenses Etc Audited Fincl Stmt	67277000	TotExpensesEtcAuditedFinclStmt
Donated Services Use Of Facilities	67353	DonatedServicesUseOfFacilities
Other Expenses Included	4177577	OtherExpensesIncluded
Expenses Not Rptd F990	4244930	ExpensesNotRptdF990
Expenses Subtotal	63032070	ExpensesSubtotal
Investment Expenses Not Included2	14489	InvestmentExpensesNotIncluded2
Expenses Not Rptd On Fin Stmt	14489	ExpensesNotRptdOnFinStmt
Total Expenses Per Form990	63046559	TotalExpensesPerForm990

Form990 Schedule D Part XIV Form990ScheduleDPartXIV (15 entries)

IdentifierIdentifier	Return ReferenceReturnReference	ExplanationExplanation
I	5 and 6	The Society does not maintain any donor advised funds. Other Funds consist of the Chicago Board of Trade Endangered Species Fund and the CZS Womens Board Fund. Contributions to these funds come from donors as well as proceeds from fundraising events and investment income. Grants are decided by committees as described in Schedule I. At times, donors who have given money to the fund may also sit on the granting committee but no one donor may decide on the grant awards. All grants awarded
I	5 and 6 contd	must follow the guidelines and processes established by CZS. CZS Board of Trustees has final approval of all Chicago Board of Trade Endangered Species Fund Committee recommended grant awards. CZS Management has final approval of all CZS Womens Board recommended grant awards.
III	1A	Animal Collections, which were acquired through breeding loans, purchases and contributions, are not recognized as assets on the Statement of Financial Position. Costs to acquire collection items are recorded as decreases in unrestricted net assets in the year in which the animals are acquired. Proceeds from deaccessions are reflected as increases in the appropriate net asset class. The Societys animal collection consists of specimens with numerous attributes including, taxonomic group,
III	1A contd	age, sex, relationship and value to other animals, endangered status and breeding potential. The Society retains a record of every animal in a permanent file. An inventory of the collection is prepared annually. Professionally trained keeper staff and population managers provide daily care for the colletion and determine population needs.
III	4	The more than 2500 ambassadors of the animal kingdom which make up the CZS collection provide our visitors a rare opportunity to see species from around the globe. The collection, in connection with our education programs, provides CZS the opportunity to teach guests about animals and nature, conservation and other related topics.
IV	2B	CZS acts as fiscal agent for certain subgroups of the AZA Species Survival Plan Grps, Taxon Advisory Grps, Strat. Action Grps or other similar groups where the current chair of the group is a CZS employee. The funds are tracked separately on CZS books as an offsetting asset and liability. Funds expended from these accounts are subject to the same policies as other CZS expenses. If the Chair of the group changes or moves to another institution, the funds are transferred to that institution.
V	4	The Societys endowment consists of 11 different funds established to support a variety of CZS programs including conservation and research, education and outreach, care of the animal collection and grounds, and general operations. Additionally, the Society is the designated beneficiary of the interest income on a 1 million endowment established and maintained by the Chicago Community Trust. The CCT maintains variance power over this endowment and, accordingly, the Society has not included it
V	4 Contd	in its financial statements.
VI	1A-E	The Society operates a zoological park on land owned by the Forest Preserve District of Cook County, IL which is provided to the Society at no charge. The land site of the Zoo, accordingly, is not recorded on the Societys financial statements. All park improvements acquired by the Society are legally owned by the District. All Park improvements acquired by the Society, including those acquired with District funds, are recorded as park improvements on the Societys financial statements.
VI	1A-E Contd	The amount in Other represents construction in progress on capital assets. Once a capital assets is complete and in use, the total amount for that project is closed out of construction in progress and transferred to park improvements.
X	2	The Societys application of GAAPUSA regarding uncertain tax positions had no effect on its financial position as management believes the Society has no material unrecognized income tax benefits, including any potential risk of loss of its not-for-profit status. The Society would account for any potential interest or penalties related to possible future liabilities for unrecognized income tax benefits as income tax expense. The Society is no longer subject to
X	2 Contd	examination by federal, state or local tax authorities for periods before 2008.
XI	8	Other Adjustments - Change in post retirement benefits not yet recognized in operations -969,000, rounding and misc. adjustment 555
XII	4B	Other Adjustments - Cost of Sales Inventory -3,416,847, fundraising event expense -753,365, raffle expense -7920
XIII	2D	Other Adjustments - Cost of Sales Inventory 3,416,847, fundraising event expense 753,365, raffle expense 7,920, rounding and misc. adjustment -555

Schedule F IRS990ScheduleF

Field	Value	IRS element (for citing)
Grant Records Maintained	true	GrantRecordsMaintained

Accts Actvs Out US Table AcctsActvsOutUSTable (13 entries)

RegionRegion	Type Of Activities ConductedTypeOfActivitiesConducted	Total ExpendituresTotalExpenditures	Specific Services ProvidedSpecificServicesProvided
Central America and the Caribbean	grants to recipients in region	3000
Central America and the Caribbean	program services	1888	attend conservation related conference
East Asia and the Pacific	grants to recipients in region	12260
East Asia and the Pacific	program services	2730	attend conservation related conference
Europe	grants to recipients in region	25000
Europe	program services	3073	attend conservation related conference
Europe	program services	12052	membership in conservation organization
North America	program services	4424	attend conservation related conference
South America	grants to recipients in region	38745
South America	program services	18979	conservation related fieldwork
South Asia	grants to recipients in region	4700
South Asia	program services	52	attend conservation related conference
Sub-Saharan Africa	grants to recipients in region	27130

Field	Value	IRS element (for citing)
Subtotal Amount Spent	154033	SubtotalAmountSpent
Total Amount Spent	154033	TotalAmountSpent

Grants To Orgs Outside US GrantsToOrgsOutsideUS (3 entries)

RegionRegion	Purpose Of GrantPurposeOfGrant	Amount Of Cash GrantAmountOfCashGrant	Manner Of Cash DisbursementMannerOfCashDisbursement
Europe	Conservation research fieldwork	25000	wire transfer
South America	Conservation research fieldwork	10000	check
Sub-Saharan Africa	Conservation research fieldwork	10000	wire transfer

Field	Value	IRS element (for citing)
Total Number Of501c3 Orgs	3	TotalNumberOf501c3Orgs

Grants To Ind Outside US GrantsToIndOutsideUS (4 entries)

Type Of AssistanceTypeOfAssistance	RegionRegion	Number Of RecipientsNumberOfRecipients	Amount Of Cash GrantAmountOfCashGrant	Manner Of Cash DisbursementMannerOfCashDisbursement
Conservation research fieldwork	South America	5	16245	wire transfer
Conservation research fieldwork	East Asia and the Pacific	2	8260	wire transfer
Conservation research fieldwork	Sub-Saharan Africa	3	8130	wire transfer
Conservation research fieldwork	South Asia	1	4700	wire transfer

Field	Value	IRS element (for citing)
Transfer To Foreign Corp	false	TransferToForeignCorp
Interest In Foreign Trust	false	InterestInForeignTrust
Own Foreign Corp	false	OwnForeignCorp
Passive Foreign Invest Co	false	PassiveForeignInvestCo
Foreign Partnership	false	ForeignPartnership
Boycott Countries	false	BoycottCountries

Form990 Schedule F Part V Form990ScheduleFPartV (4 entries)

IdentifierIdentifier	Return ReferenceReturnReference	ExplanationExplanation
I	Line 2	The Society awards grants through its Chicago Board of Trade Endangered Species Fund CBT ESF. The grant cycle is 2 times per year. Grant proposals are reviewed by a team of approximately 20 reviewers. All proposals must be endorsed by an IUCN Species Survival Committee or other major, internationally known conservation organization, the AZA/WAZA, or other major zoo organization. For any individuals/organizations who are not US Citizens/entities, the Society checks the most recent OFAC Control
I	Line 2 Contd	List of Specifically Designated and Blocked Persons as well as the Consolidated List established and maintained by the 1267 Committee with respect to Al-Qaida, Usama bin Laden, and the Taliban and other individuals, groups, undertakings and entities associated with them. Approximately 50,000 is awarded each cycle, usually in amounts of 2,000 to 5,000 per grant. Final award recommendations are presented to the Executive Committee of the Board of Trustees by the CBT ESF Committee members.
I	Line 2 Contd	Status reports are required from recipients 6 months after the receipt of the funds. Final reports are due 1 year after receipt of the funds along with a final accounting of the grant funds expended. In addition, other grant funds are given by the Society to major, internationally known conservation organizations in support of their general conservation mission. These contribtuions are determined annually by Society management and approved by the Board as part of the annual operating budget.
I	Line 3, Col F	Part II Line 1, and Part III All expenditures are reported using the accrual method of accounting.

Schedule G IRS990ScheduleG

Field	Value	IRS element (for citing)
Mail Solicitations	X	MailSolicitations
Email Solicitations	X	EmailSolicitations
Phone Solicitations	X	PhoneSolicitations
In Person Solicitations	X	InPersonSolicitations
Solicitation Of Non Govt Grants	X	SolicitationOfNonGovtGrants
Solicitation Of Govt Grants	X	SolicitationOfGovtGrants
Special Fundraising Events	X	SpecialFundraisingEvents
Agreement Ref Fundraising	true	AgreementRefFundraising

Fundraiser Activity Information FundraiserActivityInformation (2 entries)

Address Line1AddressUS/AddressLine1	CityAddressUS/City	StateAddressUS/State	ZIP CodeAddressUS/ZIPCode	ActivityActivity	Fundraiser Control Of FundsFundraiserControlOfFunds	Gross ReceiptsGrossReceipts	Amount Retained By ContractorAmountRetainedByContractor	Net To OrganizationNetToOrganization
Hurley and Associates
2130 Lincoln Park West 15 South	Chicago	IL	60614	Consulting-Leadership Campaign	false	1876996	8800	1868196
Patricia J Hurley and Associates
205 W Wacker Drive Suite 1400	Chicago	IL	60606	Consutling-Fundraising dinners	false	1850678	106902	1743776

Field	Value	IRS element (for citing)
Total Gross Receipts	3727674	TotalGrossReceipts
Total Retained By Contractors	115702	TotalRetainedByContractors
Total Net To Organization	3611972	TotalNetToOrganization
Licensed States	FL	LicensedStates
Licensed States	IL	LicensedStates
Licensed States	IN	LicensedStates
Licensed States	WI	LicensedStates

Events Information EventsInformation

Field	Value	IRS element (for citing)
Name Of Event1	Whirl Gala	NameOfEvent1
Gross Receipts Event1	1369908	GrossReceiptsEvent1
Charitable Contributions Event1	1158098	CharitableContributionsEvent1
Gross Revenue Event1	211810	GrossRevenueEvent1
Rent Facility Costs Event1	165627	RentFacilityCostsEvent1
Food And Beverage Event1	89044	FoodAndBeverageEvent1
Entertainment Event1	10000	EntertainmentEvent1
Other Direct Expenses Event1	312880	OtherDirectExpensesEvent1
Name Of Event2	Conservation Award Dinner	NameOfEvent2
Gross Receipts Event2	480770	GrossReceiptsEvent2
Charitable Contributions Event2	439134	CharitableContributionsEvent2
Gross Revenue Event2	41636	GrossRevenueEvent2
Rent Facility Costs Event2	11561	RentFacilityCostsEvent2
Food And Beverage Event2	36367	FoodAndBeverageEvent2
Entertainment Event2	15000	EntertainmentEvent2
Other Direct Expenses Event2	59858	OtherDirectExpensesEvent2
Total Number Of Other Events	1	TotalNumberOfOtherEvents
Gross Receipts Other Events	118641	GrossReceiptsOtherEvents
Charitable Contrib Other Events	31554	CharitableContribOtherEvents
Gross Revenue Other Events	87087	GrossRevenueOtherEvents
Non Cash Prizes Other Events	6050	NonCashPrizesOtherEvents
Other Direct Expenses Other Events	46978	OtherDirectExpensesOtherEvents
Gross Receipts Total	1969319	GrossReceiptsTotal
Charitable Contributions Total	1628786	CharitableContributionsTotal
Gross Revenue Total Events	340533	GrossRevenueTotalEvents
Non Cash Prizes Total Events	6050	NonCashPrizesTotalEvents
Rent Facility Costs Total Events	177188	RentFacilityCostsTotalEvents
Food And Beverage Total Events	125411	FoodAndBeverageTotalEvents
Entertainment Total Events	25000	EntertainmentTotalEvents
Other Direct Expenses Total Events	419716	OtherDirectExpensesTotalEvents
Direct Expense Summary Events	753365	DirectExpenseSummaryEvents
Net Income Summary	-412832	NetIncomeSummary

Gaming Information GamingInformation

Field	Value	IRS element (for citing)
Gross Revenue Other Gaming	51800	GrossRevenueOtherGaming
Non Cash Prizes Other Gaming	7870	NonCashPrizesOtherGaming
Other Direct Expenses Other Gaming	50	OtherDirectExpensesOtherGaming
Volunteer Labor Other Gaming	true	VolunteerLaborOtherGaming
Volunteer Labor Prcnt Other Gaming	0.74000	VolunteerLaborPrcntOtherGaming
Gross Revenue Total Gaming	51800	GrossRevenueTotalGaming
Non Cash Prizes Total Gaming	7870	NonCashPrizesTotalGaming
Other Direct Expenses Total Gaming	50	OtherDirectExpensesTotalGaming
Direct Expense Summary Gaming	7920	DirectExpenseSummaryGaming
Net Gaming Income Summary	43880	NetGamingIncomeSummary

Field	Value	IRS element (for citing)
States Where Gaming Conducted	IL	StatesWhereGamingConducted
Licensed	true	Licensed
License Suspended Etc	false	LicenseSuspendedEtc
Gaming With Nonmembers	true	GamingWithNonmembers
Member Of Other Entity	false	MemberOfOtherEntity
Percentage Of Gaming Own Facility	1.00000	PercentageOfGamingOwnFacility
Name Of Gaming Rec Keeper Person	Heather Bilcer CZS Controller	NameOfGamingRecKeeperPerson

Address Of Gaming Rec Keeper US AddressOfGamingRecKeeperUS

Field	Value	IRS element (for citing)
Address Line1	3300 Golf Road	AddressLine1
City	Brookfield	City
State	IL	State
ZIP Code	60513	ZIPCode

Field	Value	IRS element (for citing)
Contract With3rd Party For Gam Rev	false	ContractWith3rdPartyForGamRev
Gaming Manager Name Person	T Sykes	GamingManagerNamePerson
Gaming Manager Compensation	326	GamingManagerCompensation
Gaming Manager Services Provided	As VP Dev., Mr. Sykes spends a small of amt of his time supervising the raffle.	GamingManagerServicesProvided
Gaming Manager Is Employee	X	GamingManagerIsEmployee
Charitable Distrib Required	false	CharitableDistribRequired

Schedule I IRS990ScheduleI

Field	Value	IRS element (for citing)
Records Maintained	true	RecordsMaintained

Recipient Table RecipientTable (2 entries)

Address Line1AddressUS/AddressLine1	CityAddressUS/City	StateAddressUS/State	ZIP CodeAddressUS/ZIPCode	EIN Of RecipientEINOfRecipient	IRC SectionIRCSection	Amount Of Cash GrantAmountOfCashGrant	Purpose Of GrantPurposeOfGrant
Society for Marine Mammal Conservations
8272 Moss Landing Rd	Moss Landing	CA	95039	942842655	501c3	35000	Spt for conservation conference
Vital Ground Foundation
Bldg 2-T Fort Missoula Rd	Missoula	MT	59804	870483446	501c3	7500	general operating spt

Field	Value	IRS element (for citing)
Total Nbr Of501 C3 And Govt Grants	2	TotalNbrOf501C3AndGovtGrants

Form990 Schedule I Part III Form990ScheduleIPartIII

Field	Value	IRS element (for citing)
Type Of Grant	Educ. Scholarship for Conservation Science Studies	TypeOfGrant
Number Of Recipients	5	NumberOfRecipients
Amount Of Cash Grant	9500	AmountOfCashGrant

Form990 Schedule I Part IV Form990ScheduleIPartIV (2 entries)

IdentifierIdentifier	Return ReferenceReturnReference	ExplanationExplanation
I	Line 2	CZS awards grants and assistance through a variety of programs. For awards under the CBT ESF program as well as general contributions to major conservation organizations, see details in Schedule F, part IV. CZS also provides grants and assistance through its educational scholarship programs and bus stipends programs. CZS maintains records to substantiate amounts, elegibility and selection criteria. Procedures are in place to monitor grants to ensure they are used for proper purposes including,
I	Line 2 Contd	where applicable, periodic reporting by the grantee.

Schedule J IRS990ScheduleJ

Field	Value	IRS element (for citing)
Idemnification Gross Up Payments	X	IdemnificationGrossUpPayments
Housing Allowance Or Residence	X	HousingAllowanceOrResidence
Written Policy Re T And E Expenses	true	WrittenPolicyReTAndEExpenses
Substantiation Required	true	SubstantiationRequired
Compensation Committee	X	CompensationCommittee
Independent Consultant	X	IndependentConsultant
Form990 Of Other Organizations	X	Form990OfOtherOrganizations
Compensation Survey	X	CompensationSurvey
Board Or Committee Approval	X	BoardOrCommitteeApproval
Severance Payment	true	SeverancePayment
Supplemental Nonqual Retire Plan	false	SupplementalNonqualRetirePlan
Equity Based Comp Arrangement	false	EquityBasedCompArrangement
Comp Based On Revenue Of Filing Org	false	CompBasedOnRevenueOfFilingOrg
Comp Based On Revenue Related Orgs	false	CompBasedOnRevenueRelatedOrgs
Comp Based Net Earnings Filing Org	false	CompBasedNetEarningsFilingOrg
Comp Based Net Earnings Relate Orgs	false	CompBasedNetEarningsRelateOrgs
Any Non Fixed Payments	false	AnyNonFixedPayments
Initial Contract Exception	false	InitialContractException

Form990 Schedule J Part II Form990ScheduleJPartII (10 entries)

Base Compensation Filing OrgBaseCompensationFilingOrg	Other Compensation Filing OrgOtherCompensationFilingOrg	Deferred Comp Filing OrgDeferredCompFilingOrg	Nontaxable Benefits Filing OrgNontaxableBenefitsFilingOrg	Total Compensation Filing OrgTotalCompensationFilingOrg	Bonus Filing OrgBonusFilingOrg
Stuart D Strahl PhD
365346	44475	6738	20044	436603
Cindy Zeigler
250000	2970	3952	344	257266
Dr Alejandro Grajal
184422	1177	3762	17476	206837
Kenneth S Kaduk
183067	825	5042	13304	202238
Frank W Zeigler
167630		1962	17847	187439
Sarah Breen-Bartecki
167416	468	4537	6084	178505
Matthew Mayer
154529	343	2279	5886	173037	10000
Terrence Sykes
162921	324	2509	17746	183500
Brian Krockey
111052	44498		16895	172445
Anna Clarke
143697	1608	3781	3125	152211

Form990 Schedule J Part III Form990ScheduleJPartIII (2 entries)

IdentifierIdentifier	Return ReferenceReturnReference	ExplanationExplanation
I	1A	As provided for in the executive employment agreement approved by the Board of Trustees, the President received a housing allowance and a gross up payment equivalent to the tax obligation for the value of Society provided life insurance. Both were treated as taxable compensation to the President.
I	4A	As provided for in the Severance Agreement with the Sr. Director of Food Service Operations related to the elimination of the position, he received a severance payment of 41,278.

Schedule K IRS990ScheduleK

Form990 Schedule K Part I Form990ScheduleKPartI (2 entries)

Issuer EINIssuerEIN	CUSIP NumberCUSIPNumber	Date IssuedDateIssued	Issue PriceIssuePrice	Description Of PurposeDescriptionOfPurpose	DefeasedDefeased	On Behalf Of IssuerOnBehalfOfIssuer	Pool FinancingPoolFinancing
Village of Brookfield Cook County IL
366005807	112732AAD	2008-06-18	39850000	Construction and renovation of certain buildings and exhibits	false	false	false
Village of Brookfield Cook County IL
366005807	00000NONE	2005-12-22	3530000	Refinance of remaining series 1995A Bonds	false	false	false

Form990 Schedule K Part II Form990ScheduleKPartII (2 entries)

Amount RetiredAmountRetired	Total ProceedsTotalProceeds	Capitalized InterestCapitalizedInterest	Issuance Costs From ProceedsIssuanceCostsFromProceeds	Capital ExpendituresCapitalExpenditures	Year Of Subst CompletionYearOfSubstCompletion	Current RefundingCurrentRefunding	Advance RefundingAdvanceRefunding	Final Allocation MadeFinalAllocationMade	Adequate Books And Recds MaintaindAdequateBooksAndRecdsMaintaind	Working Capital ExpendituresWorkingCapitalExpenditures	Other Spent ProceedsOtherSpentProceeds
9130000	39850000	595445	296598	30539559	2010	false	false	true	true
	3530000		70600		1998	true	false	true	true	872	3458528

Form990 Schedule K Part III Form990ScheduleKPartIII

Field	Value	IRS element (for citing)
Owning Bond Financed Property	false	OwningBondFinancedProperty
Any Lease Arrangements	false	AnyLeaseArrangements
Mngment Cntrct Bond Financd Prprty	false	MngmentCntrctBondFinancdPrprty
Engage Bond Counsel Contracts	false	EngageBondCounselContracts
Any Research Agreements	false	AnyResearchAgreements
Percentage Of Prvt Business Re UBI	0.01280	PercentageOfPrvtBusinessReUBI
Total Private Business Use	0.01280	TotalPrivateBusinessUse
Post Issuance Compliance Procdrs	true	PostIssuanceComplianceProcdrs

Form990 Schedule K Part IV Form990ScheduleKPartIV (2 entries)

Form8038 T FiledForm8038TFiled	Variable Rate IssueVariableRateIssue	Hedge Identified In Books And RecdsHedgeIdentifiedInBooksAndRecds	Term Of HedgeTermOfHedge	Superintegrated HedgeSuperintegratedHedge	Hedge TerminatedHedgeTerminated	Gross Proceeds Invested In GICGrossProceedsInvestedInGIC	Gross Proceeds InvestedGrossProceedsInvested	Exception To RebateExceptionToRebate
The Northern Trust Co
false	true	true	0000000007.000000000000	false	false	false	false	false
The Northern Trust Co
false	true	true	0000000004.900000000000	false	false	false	false	true

Schedule L IRS990ScheduleL

Form990 Schedule L Part IV Form990ScheduleLPartIV (5 entries)

RelationshipRelationship	Amount Of TransactionAmountOfTransaction	Description Of TransactionDescriptionOfTransaction	Sharing Of RevenuesSharingOfRevenues
HDO Inc
Trustee Bert A. Getz, Jr. serves as Director	116444	Tent Rental	false
Freeborn& Peters LLP
Secretary of the Board Randall G. Vickery serves as a Partner	703361	Legal Services	false
The Northern Trust Company
Trustee Arthur J. Fogel serves as Executive VP/Managing Director	399451	Banking, Investment and LC services	false
Cindy Zeigler
Family Member of Key employee	257266	employment	false
Frank W Zeigler
Family Member of Key employee	187439	employment	false

Form990 Schedule L Part V Form990ScheduleLPartV (5 entries)

IdentifierIdentifier	Return ReferenceReturnReference	ExplanationExplanation
IV	1	During 2011, the Society used HDO, Inc. for tent rental services. Trustee Bert A. Getz, Jr. serves as a Diretor of HDO, Inc. This transaction followed the Societys established procurement policy and rates are competitive with market rates.
IV	2	During 2011, the Society used Freeborn Peters LLP for legal services. Secretary of the Board Randall G. Vickery serves as a Partner of Freeborn Peters. This transaction followed the Societys established procurement policy and rates are competitive with market rates.
IV	3	During 2011, the Society used The Northern Trust Company for banking, investment and letter of credit services. Trustee Arthur J. Fogel serves as an Executive VP and Managing Partner at Northern Trust. This transaction followed the Societys established procurement policy and rates are competitive with market rates.
IV	4	During 2011, Cindy Zeigler was employed as Sr. VP of Institutional Advancement. She is a family member of Key Employee Frank W. Zeigler. Her employment follows the Societys established recruiting, hiring and compensation policies.
IV	5	During 2011, Frank W. Zeigler was employed as Sr. VP Collection and Animal Care. He is a family member of Key Employee Cindy Zeigler. His employment follows the Societys established recruiting, hiring and compensation policies.

Schedule M IRS990ScheduleM

Works Of Art WorksOfArt

Field	Value	IRS element (for citing)
Non Cash Checkbox	X	NonCashCheckbox
Number Of Contributions	1	NumberOfContributions
Noncash Contribs Rptd F990	1250	NoncashContribsRptdF990
Method Of Determining Revenues	cost or selling price	MethodOfDeterminingRevenues

Books And Publications BooksAndPublications

Field	Value	IRS element (for citing)
Non Cash Checkbox	X	NonCashCheckbox
Noncash Contribs Rptd F990	5760	NoncashContribsRptdF990
Method Of Determining Revenues	cost or selling price	MethodOfDeterminingRevenues

Cars And Other Vehicles CarsAndOtherVehicles

Field	Value	IRS element (for citing)
Non Cash Checkbox	X	NonCashCheckbox
Number Of Contributions	1	NumberOfContributions
Noncash Contribs Rptd F990	27655	NoncashContribsRptdF990
Method Of Determining Revenues	MSRP	MethodOfDeterminingRevenues

Securities Publicly Traded SecuritiesPubliclyTraded

Field	Value	IRS element (for citing)
Non Cash Checkbox	X	NonCashCheckbox
Number Of Contributions	36	NumberOfContributions
Noncash Contribs Rptd F990	413460	NoncashContribsRptdF990
Method Of Determining Revenues	price of stock on gift date	MethodOfDeterminingRevenues

Securities Closely Held Stock SecuritiesCloselyHeldStock

Field	Value	IRS element (for citing)
Non Cash Checkbox	X	NonCashCheckbox
Number Of Contributions	1	NumberOfContributions
Noncash Contribs Rptd F990	129591	NoncashContribsRptdF990
Method Of Determining Revenues	appraisal	MethodOfDeterminingRevenues

Food Inventory FoodInventory

Field	Value	IRS element (for citing)
Non Cash Checkbox	X	NonCashCheckbox
Number Of Contributions	12	NumberOfContributions
Noncash Contribs Rptd F990	28324	NoncashContribsRptdF990
Method Of Determining Revenues	cost or selling price	MethodOfDeterminingRevenues

Drugs And Medical Supplies DrugsAndMedicalSupplies

Field	Value	IRS element (for citing)
Non Cash Checkbox	X	NonCashCheckbox
Number Of Contributions	4	NumberOfContributions
Noncash Contribs Rptd F990	56614	NoncashContribsRptdF990
Method Of Determining Revenues	cost or selling price	MethodOfDeterminingRevenues

Scientific Specimens ScientificSpecimens

Field	Value	IRS element (for citing)
Non Cash Checkbox	X	NonCashCheckbox
Number Of Contributions	132	NumberOfContributions

Other Non Cash Contributions Table OtherNonCashContributionsTable (4 entries)

Non Cash CheckboxNonCashCheckbox	DescriptionDescription	Number Of ContributionsNumberOfContributions	Noncash Contribs Rptd F990NoncashContribsRptdF990	Method Of Determining RevenuesMethodOfDeterminingRevenues
X	Operating Supplies	90	212145	cost or selling price
X	charity fundraiser items	4	23957	cost or selling price
X	charity auction items	15	74890	cost or selling price
X	charity raffle items	7	7870	cost or selling price

Field	Value	IRS element (for citing)
Any Property That Must Be Held	false	AnyPropertyThatMustBeHeld
Review Process Unusual NC Gifts	true	ReviewProcessUnusualNCGifts
Third Parties Used	false	ThirdPartiesUsed

Form990 Schedule M Part II Form990ScheduleMPartII (2 entries)

IdentifierIdentifier	Return ReferenceReturnReference	ExplanationExplanation
I	33	Securities Current year contributions of stock which represent payments on pledges recorded as contribution revenue in a previous year are not included in the revenue shown on Form 990, Part VIII, Line 1g.
I	33	Collection Items/Scientific Specimens - A zero amount was reported on Form 990, Part VIII, Line 1g because the Society does not capitalize its collection, as allowed under SFAS 116.

Schedule O IRS990ScheduleO

General Explanation GeneralExplanation (17 entries)

IdentifierIdentifier	Return ReferenceReturnReference	ExplanationExplanation
Form 990 Part VI	1A	The fiscal, general oversight, and policies of the Society are vested in a Board of not more than 58 Trustees. As of December 31, 2011there were 50 voting Trustees. The elected Officers of the Board, the chairs of the standing committees and such other Trustees as may be appointed by the Chairman constitute the Executive Committee. The Executive Committee has the power to transact all regular business of the Society during the period between the regular Board meetings.
Form 990 Part VI	2	Corwith Hamill, Honorary Chairman of the Board of Trustees and Elizabeth Hamill Bramsen, Vice-Chairman of the Board - Family Relationship Larry DeMar, Trustee and Vicki DeMar, Trustee - Family Relationship Cindy Zeigler, Key Employee and Frank W. Zeigler, Key Employee - Family Relationship
Form 990 Part VI	6	The membership of the Society is composed of up to 250 Governing Members. Up to 55 of the 58 Board of Trustees are elected by the Governing Members at their annual meeting. Governing Members are also eligible for appointment by the Societys Chairman to serve on Board committees other than the Executive Committee. Governing Members are chosen by the Nominating and Governance Committee of the Board of Trustees and voted on by the full Board of Trustees.
Form 990 Part VI	7A	The membership of the Society is composed of up to 250 Governing Members. Up to 55 of the 58 Board of Trustees are elected by the Governing Members at their annual meeting. Governing Members are also eligible for appointment by the Societys Chairman to serve on Board committees other than the Executive Committee. Governing Members are chosen by the Nominating and Governance Committee of the Board of Trustees and voted on by the full Board of Trustees.
Form 990 Part VI	11A	The IRS Form 990 is prepared by Societys management and reviewed and signed by the Societys tax advisor. The Form 990 is also reveiwed by the Audit Committee of the Board of Trustees. A copy of the entire final version of the form is also made available to the Board of Trustees prior to filing with the IRS.
Form 990 Part VI	12C	Annually, a conflict of interest form is sent out to all members of the Board of Trustees, Key Employees and any employee with purchasing authority. The form covers potential conflicts through financial interests, use of Society services, privileged information and representation of Society interests. It also covers specific disclosures required by the IRS Form 990 and the Illinois AG990IL. Board of Trustee responses are reviewed by the Secretary of the Board and the Sr. VP Finance and Admin. who together determine if a conflict exists. Employee responses are reviewed by the VP Human Resources and the Sr. VP Finance and Admin. Any conflicts are addressed to ensure that all internal procedures are followed for any transactions with that individual and that all items requiring disclosure are properly noted. Any Board members with a conflict must abstain from voting on
Form 990 Part VI	12C contd	decisions involving the transaction in question. Any transactions entered into with interested persons follow the Societys established procurement policies and are provided at rates competitive with market rates.
Form 990 Part VI	15A and 15B	The Societys policy for approval of compensation arrangements with officers and certain senior employees requires review and approval of the compensation arrangement by the Executive Committee of the Board, excluding anyone who is related to or under the control of the person involved in the arrangement. The Committee relies on appropriate comparability data which indicates the types and levels of similar compensation and benefit packages for similar positions provided by similar organizations. The Committee documents the basis for its determination of the reasonableness of compensation. This process is done annually for the President, Sr. VP Finance and Admin and the Sr. VP of Institutional Advancement in any year where there is an increase in compensation.
Form 990 Part VI	19	Governing documents are available through applicable governmental agencies the conflict of interest policy and financial statements are available upon written request to the Society.
Form 990 Part V	7h	The Society received a donated car from a car dealership, however this donation was exempt from 1098-C reporting since it does not meet the definition of a qualified vehicle for 1098-C reporting purposes.
Form 990 Part XI	5	Other changes in net assets or fund balances Net unrealized gain/loss on investments -1,788,675 Changes in Post Retirment Benefits not yet recognized in operations -969,000
Form 990 Part III Program Service Accomplishments	Line 4d Other Activities	Program Service Expenses 6,832,000, Grants and allocations 192,514, Revenue 621,246 Center for Conservation Leadership CCL Through its many conservation and education programs, CZS communicates with others to engender in them a sense of ownership about living harmoniously with nature and helping save endangered species. Education specialists, curators, graphic and exhibit designers, photographers and many others contribute to sharing this information with visitors. As well as reaching the 2.1 million visitors, CZS engages would be conservationists outside of the Zoo including classrooms of school children, teachers and community leaders. Additionally through field programs, CZS supports efforts to protect and restore populations of threatened species in other parts of the world. The CCL strengthens the bridge between education and conservation, between field research and the animals in our care.
Form 990 Part III Program Service Accomplishments	Line 4d Other Activities	Program Service Expenses 2,987,000, Grants and allocations 0, Revenue 5,114,939 Admissions and Parking In the course of a year, over 2.1 million visitors enjoy the experience of seeing and learning about the animals of the world. Each individual that enters Brookfield Zoos gates represents an opportunity a chance to introduce representatives of the wild world, to convey our intertwined connections to the animal kingdom, and to encourage positive change in the world. The Brookfield Zoo is open every day of the year. Admission is free to the general public 52 days each year and at all times to Illinois school groups and to military personnel. On certain days throughout the summer extended hours are offered to be more accessible to a more diverse audience.
Form 990 Part III Program Service Accomplishments	Line 4d Other Activities	Program Service Expenses 1,235,000, Grants and allocations 0, Revenue 2,265,463 Membership The membership program services our 109,000 member households, providing them with the opportunity to participate in the conservation and educational efforts of CZS. Member services fulfills new and renewing memberships, answers member questions at locations throughout the park and via telephone and provides educational member Animail updates via email. Members receive unlimited free admission, free or discounted parking and in-park attraction admissions and discounts on food, merchandise and educational classes.
Form 990 Part III Program Service Accomplishments	Line 4d Other Activities	Program Service Expenses 3,066,000, Grants and allocations 0, Revenue 954,895 Marketing and Public Relations CZSs marketing and public relations draws thousands of visitors throughout the year to discover, celebrate and help conserve natures gifts. Through production of seasonal themed events such as Holiday Magic, Creatures of the Night, Boo at the Zoo and Real Fan Days, CZS attracts attendance and exposes a wider audience to our mission. Through celebratory events including Party for the Planet, Ape Awareness Month and Bear Awareness Weekend CZS inspires conservation leadership. Through outreach programming to local communities and organizations, CZS reaches out to those who may not have an opportunity to visit the zoo otherwise. Additionally, CZS produces two complementary websites CZS.org is devoted to in-depth discussion of conservation issues designed to inspire conservation leadership in our guests brookfieldzoo.org acquaints future and past visitors with the many exhibits within the Zoo, upcoming special events and visit planning tools.
Form 990 Part III Program Service Accomplishments	Line 4d Other Activities	Program Service Expenses 7,517,000, Grants and allocations 0, Revenue 0 Depreciation Depreciation on the Zoos 228 million in buildings and equipment, including animal exhibits, animal care facilities, education spaces, shops and restaurants.
		Form 990, Part III, Line 4d Program Service Expenses 6,832,000, Grants and allocations 192,514, Revenue 621,246 Center for Conservation Leadership CCL Through its many conservation and education programs, CZS communicates with others to engender in them a sense of ownership about living harmoniously with nature and helping save endangered species. Education specialists, curators, graphic and exhibit designers, photographers and many others contribute to sharing this information with visitors. As well as reaching the 2.1 million visitors, CZS engages would be conservationists outside of the Zoo including classrooms of school children, teachers and community leaders. Additionally through field programs, CZS supports efforts to protect and restore populations of threatened species in other parts of the world. The CCL strengthens the bridge between education and conservation, between field research and the animals in our care. Form 990, Part III, Line 4d Program Service Expenses 2,987,000, Grants and allocations 0, Revenue 5,114,939 Admissions and Parking In the course of a year, over 2.1 million visitors enjoy the experience of seeing and learning about the animals of the world. Each individual that enters Brookfield Zoos gates represents an opportunity a chance to introduce representatives of the wild world, to convey our intertwined connections to the animal kingdom, and to encourage positive change in the world. The Brookfield Zoo is open every day of the year. Admission is free to the general public 52 days each year and at all times to Illinois school groups and to military personnel. On certain days throughout the summer extended hours are offered to be more accessible to a more diverse audience. Form 990, Part III, Line 4d Program Service Expenses 1,235,000, Grants and allocations 0, Revenue 2,265,463 Membership The membership program services our 109,000 member households, providing them with the opportunity to participate in the conservation and educational efforts of CZS. Member services fulfills new and renewing memberships, answers member questions at locations throughout the park and via telephone and provides educational member Animail updates via email. Members receive unlimited free admission, free or discounted parking and in-park attraction admissions and discounts on food, merchandise and educational classes. Form 990, Part III, Line 4d Program Service Expenses 3,066,000, Grants and allocations 0, Revenue 954,895 Marketing and Public Relations CZSs marketing and public relations draws thousands of visitors throughout the year to discover, celebrate and help conserve natures gifts. Through production of seasonal themed events such as Holiday Magic, Creatures of the Night, Boo at the Zoo and Real Fan Days, CZS attracts attendance and exposes a wider audience to our mission. Through celebratory events including Party for the Planet, Ape Awareness Month and Bear Awareness Weekend CZS inspires conservation leadership. Through outreach programming to local communities and organizations, CZS reaches out to those who may not have an opportunity to visit the zoo otherwise. Additionally, CZS produces two complementary websites CZS.org is devoted to in-depth discussion of conservation issues designed to inspire conservation leadership in our guests brookfieldzoo.org acquaints future and past visitors with the many exhibits within the Zoo, upcoming special events and visit planning tools. Form 990, Part III, Line 4d Program Service Expenses 7,517,000, Grants and allocations 0, Revenue 0 Depreciation Depreciation on the Zoos 228 million in buildings and equipment, including animal exhibits, animal care facilities, education spaces, shops and restaurants. Form 990 Part VI Section A Line 1A The fiscal, general oversight, and policies of the Society are vested in a Board of not more than 58 Trustees. As of December 31, 2011there were 50 voting Trustees. The elected Officers of the Board, the chairs of the standing committees and such other Trustees as may be appointed by the Chairman constitute the Executive Committee. The Executive Committee has the power to transact all regular business of the Society during the period between the regular Board meetings. Form 990 Part VI Section A Line 2 Corwith Hamill, Honorary Chairman of the Board of Trustees and Elizabeth Hamill Bramsen, Vice-Chairman of the Board - Family Relationship Larry DeMar, Trustee and Vicki DeMar, Trustee - Family Relationship Cindy Zeigler, Key Employee and Frank W. Zeigler, Key Employee - Family Relationship Form 990 Part VI Section A Line 6 The membership of the Society is composed of up to 250 Governing Members. Up to 55 of the 58 Board of Trustees are elected by the Governing Members at their annual meeting. Governing Members are also eligible for appointment by the Societys Chairman to serve on Board committees other than the Executive Committee. Governing Members are chosen by the Nominating and Governance Committee of the Board of Trustees and voted on by the full Board of Trustees. Form 990 Part VI Section A Line 7A The membership of the Society is composed of up to 250 Governing Members. Up to 55 of the 58 Board of Trustees are elected by the Governing Members at their annual meeting. Governing Members are also eligible for appointment by the Societys Chairman to serve on Board committees other than the Executive Committee. Governing Members are chosen by the Nominating and Governance Committee of the Board of Trustees and voted on by the full Board of Trustees. Form 990 Part VI Section B Line 11A The IRS Form 990 is prepared by Societys management and reviewed and signed by the Societys tax advisor. The Form 990 is also reveiwed by the Audit Committee of the Board of Trustees. A copy of the entire final version of the form is also made available to the Board of Trustees prior to filing with the IRS. Form 990 Part VI Section B Line 12C Annually, a conflict of interest form is sent out to all members of the Board of Trustees, Key Employees and any employee with purchasing authority. The form covers potential conflicts through financial interests, use of Society services, privileged information and representation of Society interests. It also covers specific disclosures required by the IRS Form 990 and the Illinois AG990IL. Board of Trustee responses are reviewed by the Secretary of the Board and the Sr. VP Finance and Admin. who together determine if a conflict exists. Employee responses are reviewed by the VP Human Resources and the Sr. VP Finance and Admin. Any conflicts are addressed to ensure that all internal procedures are followed for any transactions with that individual and that all items requiring disclosure are properly noted. Any Board members with a conflict must abstain from voting on Form 990 Part VI Section B Line 12C contd decisions involving the transaction in question. Any transactions entered into with interested persons follow the Societys established procurement policies and are provided at rates competitive with market rates. Form 990 Part VI Section B Line 15A and 15B The Societys policy for approval of compensation arrangements with officers and certain senior employees requires review and approval of the compensation arrangement by the Executive Committee of the Board, excluding anyone who is related to or under the control of the person involved in the arrangement. The Committee relies on appropriate comparability data which indicates the types and levels of similar compensation and benefit packages for similar positions provided by similar organizations. The Committee documents the basis for its determination of the reasonableness of compensation. This process is done annually for the President, Sr. VP Finance and Admin and the Sr. VP of Institutional Advancement in any year where there is an increase in compensation. Form 990 Part VI Section C Line 19 Governing documents are available through applicable governmental agencies the conflict of interest policy and financial statements are available upon written request to the Society. Form 990 Part V Line 7h The Society received a donated car from a car dealership, however this donation was exempt from 1098-C reporting since it does not meet the definition of a qualified vehicle for 1098-C reporting purposes. Form 990 Part XI Line 5 Other changes in net assets or fund balances Net unrealized gain/loss on investments -1,788,675 Changes in Post Retirment Benefits not yet recognized in operations -969,000