﻿<?xml version="1.0" encoding="utf-8"?>
<Return xmlns="http://www.irs.gov/efile" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.irs.gov/efile" returnVersion="2023v5.1">
  <ReturnHeader binaryAttachmentCnt="0">
    <ReturnTs>2024-11-15T08:24:23-06:00</ReturnTs>
    <TaxPeriodEndDt>2023-12-31</TaxPeriodEndDt>
    <PreparerFirmGrp>
      <PreparerFirmEIN>362938874</PreparerFirmEIN>
      <PreparerFirmName>
        <BusinessNameLine1Txt>OSTROW REISIN BERK &amp; ABRAMS LTD</BusinessNameLine1Txt>
      </PreparerFirmName>
      <PreparerUSAddress>
        <AddressLine1Txt>455 N CITYFRONT PLAZA DR SUITE 1600</AddressLine1Txt>
        <CityNm>CHICAGO</CityNm>
        <StateAbbreviationCd>IL</StateAbbreviationCd>
        <ZIPCd>60611</ZIPCd>
      </PreparerUSAddress>
    </PreparerFirmGrp>
    <ReturnTypeCd>990</ReturnTypeCd>
    <TaxPeriodBeginDt>2023-01-01</TaxPeriodBeginDt>
    <Filer>
      <EIN>726019246</EIN>
      <BusinessName>
        <BusinessNameLine1Txt>AMERICAN ORNITHOLOGICAL SOCIETY</BusinessNameLine1Txt>
      </BusinessName>
      <BusinessNameControlTxt>AMER</BusinessNameControlTxt>
      <PhoneNum>3126657936</PhoneNum>
      <USAddress>
        <AddressLine1Txt>1400 S LAKE SHORE DRIVE</AddressLine1Txt>
        <CityNm>CHICAGO</CityNm>
        <StateAbbreviationCd>IL</StateAbbreviationCd>
        <ZIPCd>60605</ZIPCd>
      </USAddress>
    </Filer>
    <BusinessOfficerGrp>
      <PersonNm>JUDITH C SCARL</PersonNm>
      <PersonTitleTxt>EXECUTIVE DIRECTOR</PersonTitleTxt>
      <PhoneNum>3126657936</PhoneNum>
      <SignatureDt>2024-11-13</SignatureDt>
      <DiscussWithPaidPreparerInd>1</DiscussWithPaidPreparerInd>
    </BusinessOfficerGrp>
    <IRSResponsiblePrtyInfoCurrInd>0</IRSResponsiblePrtyInfoCurrInd>
    <PreparerPersonGrp>
      <PreparerPersonNm>JAMES G QUAID</PreparerPersonNm>
      <PTIN>P00641738</PTIN>
      <PhoneNum>3126707444</PhoneNum>
      <PreparationDt>2024-11-13</PreparationDt>
    </PreparerPersonGrp>
    <TaxYr>2023</TaxYr>
    <BuildTS>2024-10-15 13:58:12Z</BuildTS>
  </ReturnHeader>
  <ReturnData documentCnt="9">
    <IRS990 documentId="RetDoc1038000001" referenceDocumentId="RetDoc1044400001">
      <PrincipalOfficerNm>JUDITH C SCARL</PrincipalOfficerNm>
      <USAddress>
        <AddressLine1Txt>1400 S LAKE SHORE DRIVE</AddressLine1Txt>
        <CityNm>CHICAGO</CityNm>
        <StateAbbreviationCd>IL</StateAbbreviationCd>
        <ZIPCd>60605</ZIPCd>
      </USAddress>
      <GrossReceiptsAmt>2700824</GrossReceiptsAmt>
      <GroupReturnForAffiliatesInd>0</GroupReturnForAffiliatesInd>
      <Organization501c3Ind>X</Organization501c3Ind>
      <WebsiteAddressTxt>WWW.AMERICANORNITHOLOGY.ORG</WebsiteAddressTxt>
      <TypeOfOrganizationCorpInd>X</TypeOfOrganizationCorpInd>
      <FormationYr>1883</FormationYr>
      <LegalDomicileStateCd>DC</LegalDomicileStateCd>
      <ActivityOrMissionDesc>ADVANCING THE SCIENTIFIC KNOWLEDGE AND CONSERVATION OF BIRDS</ActivityOrMissionDesc>
      <VotingMembersGoverningBodyCnt>21</VotingMembersGoverningBodyCnt>
      <VotingMembersIndependentCnt>20</VotingMembersIndependentCnt>
      <TotalEmployeeCnt>7</TotalEmployeeCnt>
      <TotalVolunteersCnt>425</TotalVolunteersCnt>
      <TotalGrossUBIAmt>1061</TotalGrossUBIAmt>
      <NetUnrelatedBusTxblIncmAmt>61</NetUnrelatedBusTxblIncmAmt>
      <PYContributionsGrantsAmt>258071</PYContributionsGrantsAmt>
      <CYContributionsGrantsAmt>173060</CYContributionsGrantsAmt>
      <PYProgramServiceRevenueAmt>530146</PYProgramServiceRevenueAmt>
      <CYProgramServiceRevenueAmt>523395</CYProgramServiceRevenueAmt>
      <PYInvestmentIncomeAmt>439298</PYInvestmentIncomeAmt>
      <CYInvestmentIncomeAmt>523490</CYInvestmentIncomeAmt>
      <PYOtherRevenueAmt>119936</PYOtherRevenueAmt>
      <CYOtherRevenueAmt>125471</CYOtherRevenueAmt>
      <PYTotalRevenueAmt>1347451</PYTotalRevenueAmt>
      <CYTotalRevenueAmt>1345416</CYTotalRevenueAmt>
      <PYGrantsAndSimilarPaidAmt>299884</PYGrantsAndSimilarPaidAmt>
      <CYGrantsAndSimilarPaidAmt>327187</CYGrantsAndSimilarPaidAmt>
      <PYBenefitsPaidToMembersAmt>0</PYBenefitsPaidToMembersAmt>
      <CYBenefitsPaidToMembersAmt>0</CYBenefitsPaidToMembersAmt>
      <PYSalariesCompEmpBnftPaidAmt>603314</PYSalariesCompEmpBnftPaidAmt>
      <CYSalariesCompEmpBnftPaidAmt>633420</CYSalariesCompEmpBnftPaidAmt>
      <PYTotalProfFndrsngExpnsAmt>0</PYTotalProfFndrsngExpnsAmt>
      <CYTotalProfFndrsngExpnsAmt>0</CYTotalProfFndrsngExpnsAmt>
      <CYTotalFundraisingExpenseAmt>1946</CYTotalFundraisingExpenseAmt>
      <PYOtherExpensesAmt>656871</PYOtherExpensesAmt>
      <CYOtherExpensesAmt>640189</CYOtherExpensesAmt>
      <PYTotalExpensesAmt>1560069</PYTotalExpensesAmt>
      <CYTotalExpensesAmt>1600796</CYTotalExpensesAmt>
      <PYRevenuesLessExpensesAmt>-212618</PYRevenuesLessExpensesAmt>
      <CYRevenuesLessExpensesAmt>-255380</CYRevenuesLessExpensesAmt>
      <TotalAssetsBOYAmt>24614247</TotalAssetsBOYAmt>
      <TotalAssetsEOYAmt>29078708</TotalAssetsEOYAmt>
      <TotalLiabilitiesBOYAmt>556003</TotalLiabilitiesBOYAmt>
      <TotalLiabilitiesEOYAmt>388153</TotalLiabilitiesEOYAmt>
      <NetAssetsOrFundBalancesBOYAmt>24058244</NetAssetsOrFundBalancesBOYAmt>
      <NetAssetsOrFundBalancesEOYAmt>28690555</NetAssetsOrFundBalancesEOYAmt>
      <InfoInScheduleOPartIIIInd>X</InfoInScheduleOPartIIIInd>
      <MissionDesc>THE AMERICAN ORNITHOLOGICAL SOCIETY (AOS) IS AN INTERNATIONAL MEMBERSHIP ORGANIZATION DEVOTED TO ADVANCING THE SCIENTIFIC UNDERSTANDING OF BIRDS, ENRICHING ORNITHOLOGY AS A PROFESSION, AND PROMOTING A RIGOROUS SCIENTIFIC BASIS FOR THE CONSERVATION OF BIRDS. THE AOS PRODUCES SCIENTIFIC PUBLICATIONS OF THE HIGHEST QUALITY, HOSTS INTELLECTUALLY ENGAGING AND PROFESSIONALLY VITAL MEETINGS, SERVES ORNITHOLOGISTS AT EVERY CAREER STAGE, PURSUES A GLOBAL PERSPECTIVE, AND INFORMS PUBLIC POLICY ON ALL ISSUES IMPORTANT TO ORNITHOLOGY AND ORNITHOLOGICAL COLLECTIONS.</MissionDesc>
      <SignificantNewProgramSrvcInd>0</SignificantNewProgramSrvcInd>
      <SignificantChangeInd>0</SignificantChangeInd>
      <ExpenseAmt>191271</ExpenseAmt>
      <RevenueAmt>98822</RevenueAmt>
      <Desc>AOS PUBLISHES THE JOURNALS ORNITHOLOGY, AND ORNITHOLOGICAL APPLICATIONS,' BOTH INTERNATIONAL, PEER-REVIEWED JOURNALS. IN THESE JOURNALS, AUTHORS PRESENT THEIR ORIGINAL RESEARCH AND SCHOLARSHIP THAT ADVANCES THE FUNDAMENTAL SCIENTIFIC KNOWLEDGE OF BIRD SPECIES AND CONTRIBUTES TO THE UNDERSTANDING OF BROAD BIOLOGICAL CONCEPTS THROUGH STUDIES OF BIRD SPECIES. THE SOCIETY ENDEAVORS TO PUBLISH ORIGINAL WORKS THAT INTRODUCE OR EMPLOY INNOVATIVE EMPIRICAL AND THEORETICAL APPROACHES AND ANALYSES, APPLIED RESEARCH AND METHODOLOGY, AND DISCIPLINARY REVIEWS.</Desc>
      <ProgSrvcAccomActy2Grp>
        <ExpenseAmt>481151</ExpenseAmt>
        <RevenueAmt>423512</RevenueAmt>
        <Desc>THE AOS HOSTS AN INTELLECTUALLY ENGAGING AND VITAL ANNUAL MEETING THAT PROVIDES OPPORTUNITIES FOR THE DYNAMIC EXCHANGE OF SCIENTIFIC IDEAS AMONG STUDENTS AND PROFESSIONALS IN THE FIELD OF ORNITHOLOGY. THE AOS PERIODICALLY HOLDS JOINT CONFERENCES IN ASSOCIATION WITH OTHER SCIENTIFIC SOCIETIES DEDICATED TO ADVANCING THE ORNITHOLOGICAL SCIENCES.</Desc>
      </ProgSrvcAccomActy2Grp>
      <ProgSrvcAccomActy3Grp>
        <ExpenseAmt>364614</ExpenseAmt>
        <GrantAmt>327187</GrantAmt>
        <Desc>THE AOS CONFERS SIGNIFICANT RESEARCH GRANTS AND PRESTIGIOUS AWARDS TO ITS MEMBERS IN RECOGNITION AND SUPPORT OF EXCELLENCE IN ORNITHOLOGY. RESEARCH GRANTS SUPPORT STUDENT AND POST-DOCTORAL RESEARCH ACROSS A RANGE OF ORNITHOLOGICAL DISCIPLINES, INCLUDING CONSERVATION, WHILE ACHIEVEMENT AWARDS SERVE TO HIGHLIGHT AND HONOR EXCELLENCE IN ORNITHOLOGY BY STUDENTS, EARLY PROFESSIONALS, AND SENIOR SCIENTISTS ACROSS ACADEMIA, GOVERNMENT, NONPROFITS, AND THE PRIVATE SECTOR WORKING ACROSS THE GLOBE.</Desc>
      </ProgSrvcAccomActy3Grp>
      <ProgSrvcAccomActyOtherGrp>
        <ExpenseAmt>211747</ExpenseAmt>
        <Desc>AOS IS A MEMBERSHIP-BASED PROFESSIONAL ORGANIZATION THAT SERVES A DIVERSE INTERNATIONAL MEMBERSHIP THROUGH A VARIETY OF PROGRAMS. AOS OFFERS VARIED BENEFITS, RESOURCES AND SUPPORT TO MEMBERS THROUGH A CLOUD-BASED MEMBERSHIP DATABASE AND MEMBER PORTAL</Desc>
      </ProgSrvcAccomActyOtherGrp>
      <TotalOtherProgSrvcExpenseAmt>211747</TotalOtherProgSrvcExpenseAmt>
      <TotalProgramServiceExpensesAmt>1248783</TotalProgramServiceExpensesAmt>
      <DescribedInSection501c3Ind referenceDocumentId="RetDoc1039100001">1</DescribedInSection501c3Ind>
      <ScheduleBRequiredInd referenceDocumentId="RetDoc1234500001">1</ScheduleBRequiredInd>
      <PoliticalCampaignActyInd>0</PoliticalCampaignActyInd>
      <LobbyingActivitiesInd>0</LobbyingActivitiesInd>
      <SubjectToProxyTaxInd>0</SubjectToProxyTaxInd>
      <DonorAdvisedFundInd referenceDocumentId="RetDoc1040000001">0</DonorAdvisedFundInd>
      <ConservationEasementsInd referenceDocumentId="RetDoc1040000001">0</ConservationEasementsInd>
      <CollectionsOfArtInd referenceDocumentId="RetDoc1040000001">0</CollectionsOfArtInd>
      <CreditCounselingInd referenceDocumentId="RetDoc1040000001">0</CreditCounselingInd>
      <DonorRstrOrQuasiEndowmentsInd>1</DonorRstrOrQuasiEndowmentsInd>
      <ReportLandBuildingEquipmentInd referenceDocumentId="RetDoc1040000001">1</ReportLandBuildingEquipmentInd>
      <ReportInvestmentsOtherSecInd referenceDocumentId="RetDoc1040000001">0</ReportInvestmentsOtherSecInd>
      <ReportProgramRelatedInvstInd referenceDocumentId="RetDoc1040000001">0</ReportProgramRelatedInvstInd>
      <ReportOtherAssetsInd referenceDocumentId="RetDoc1040000001">0</ReportOtherAssetsInd>
      <ReportOtherLiabilitiesInd referenceDocumentId="RetDoc1040000001">0</ReportOtherLiabilitiesInd>
      <IncludeFIN48FootnoteInd referenceDocumentId="RetDoc1040000001">1</IncludeFIN48FootnoteInd>
      <IndependentAuditFinclStmtInd referenceDocumentId="RetDoc1040000001">1</IndependentAuditFinclStmtInd>
      <ConsolidatedAuditFinclStmtInd referenceDocumentId="RetDoc1040000001">0</ConsolidatedAuditFinclStmtInd>
      <SchoolOperatingInd>0</SchoolOperatingInd>
      <ForeignOfficeInd>0</ForeignOfficeInd>
      <ForeignActivitiesInd referenceDocumentId="RetDoc1040500001">1</ForeignActivitiesInd>
      <MoreThan5000KToOrgInd referenceDocumentId="RetDoc1040500001">1</MoreThan5000KToOrgInd>
      <MoreThan5000KToIndividualsInd referenceDocumentId="RetDoc1040500001">1</MoreThan5000KToIndividualsInd>
      <ProfessionalFundraisingInd>0</ProfessionalFundraisingInd>
      <FundraisingActivitiesInd>0</FundraisingActivitiesInd>
      <GamingActivitiesInd>0</GamingActivitiesInd>
      <OperateHospitalInd>0</OperateHospitalInd>
      <GrantsToOrganizationsInd referenceDocumentId="RetDoc1041900001">1</GrantsToOrganizationsInd>
      <GrantsToIndividualsInd referenceDocumentId="RetDoc1041900001">1</GrantsToIndividualsInd>
      <ScheduleJRequiredInd referenceDocumentId="RetDoc1042400001">1</ScheduleJRequiredInd>
      <TaxExemptBondsInd>0</TaxExemptBondsInd>
      <EngagedInExcessBenefitTransInd referenceDocumentId="RetDoc1042800001">0</EngagedInExcessBenefitTransInd>
      <PYExcessBenefitTransInd referenceDocumentId="RetDoc1042800001">0</PYExcessBenefitTransInd>
      <LoanOutstandingInd referenceDocumentId="RetDoc1042800001">0</LoanOutstandingInd>
      <GrantToRelatedPersonInd referenceDocumentId="RetDoc1042800001">1</GrantToRelatedPersonInd>
      <BusinessRlnWithOrgMemInd referenceDocumentId="RetDoc1042800001">0</BusinessRlnWithOrgMemInd>
      <BusinessRlnWithFamMemInd referenceDocumentId="RetDoc1042800001">1</BusinessRlnWithFamMemInd>
      <BusinessRlnWith35CtrlEntInd>0</BusinessRlnWith35CtrlEntInd>
      <DeductibleNonCashContriInd>0</DeductibleNonCashContriInd>
      <DeductibleArtContributionInd>0</DeductibleArtContributionInd>
      <TerminateOperationsInd>0</TerminateOperationsInd>
      <PartialLiquidationInd>0</PartialLiquidationInd>
      <DisregardedEntityInd>0</DisregardedEntityInd>
      <RelatedEntityInd>0</RelatedEntityInd>
      <RelatedOrganizationCtrlEntInd>0</RelatedOrganizationCtrlEntInd>
      <TrnsfrExmptNonChrtblRltdOrgInd>0</TrnsfrExmptNonChrtblRltdOrgInd>
      <ActivitiesConductedPrtshpInd>0</ActivitiesConductedPrtshpInd>
      <ScheduleORequiredInd>1</ScheduleORequiredInd>
      <IRPDocumentCnt>46</IRPDocumentCnt>
      <IRPDocumentW2GCnt>0</IRPDocumentW2GCnt>
      <EmployeeCnt>7</EmployeeCnt>
      <EmploymentTaxReturnsFiledInd>1</EmploymentTaxReturnsFiledInd>
      <UnrelatedBusIncmOverLimitInd>1</UnrelatedBusIncmOverLimitInd>
      <Form990TFiledInd>1</Form990TFiledInd>
      <ForeignFinancialAccountInd>0</ForeignFinancialAccountInd>
      <ProhibitedTaxShelterTransInd>0</ProhibitedTaxShelterTransInd>
      <TaxablePartyNotificationInd>0</TaxablePartyNotificationInd>
      <NondeductibleContributionsInd>0</NondeductibleContributionsInd>
      <QuidProQuoContributionsInd>0</QuidProQuoContributionsInd>
      <Form8282PropertyDisposedOfInd>0</Form8282PropertyDisposedOfInd>
      <RcvFndsToPayPrsnlBnftCntrctInd>0</RcvFndsToPayPrsnlBnftCntrctInd>
      <PayPremiumsPrsnlBnftCntrctInd>0</PayPremiumsPrsnlBnftCntrctInd>
      <IndoorTanningServicesInd>0</IndoorTanningServicesInd>
      <SubjToTaxRmnrtnExPrchtPymtInd>0</SubjToTaxRmnrtnExPrchtPymtInd>
      <SubjectToExcsTaxNetInvstIncInd>0</SubjectToExcsTaxNetInvstIncInd>
      <InfoInScheduleOPartVIInd>X</InfoInScheduleOPartVIInd>
      <GoverningBodyVotingMembersCnt>21</GoverningBodyVotingMembersCnt>
      <IndependentVotingMemberCnt>20</IndependentVotingMemberCnt>
      <FamilyOrBusinessRlnInd>0</FamilyOrBusinessRlnInd>
      <DelegationOfMgmtDutiesInd>0</DelegationOfMgmtDutiesInd>
      <ChangeToOrgDocumentsInd>0</ChangeToOrgDocumentsInd>
      <MaterialDiversionOrMisuseInd>0</MaterialDiversionOrMisuseInd>
      <MembersOrStockholdersInd>1</MembersOrStockholdersInd>
      <ElectionOfBoardMembersInd>1</ElectionOfBoardMembersInd>
      <DecisionsSubjectToApprovaInd>1</DecisionsSubjectToApprovaInd>
      <MinutesOfGoverningBodyInd>1</MinutesOfGoverningBodyInd>
      <MinutesOfCommitteesInd>1</MinutesOfCommitteesInd>
      <OfficerMailingAddressInd>0</OfficerMailingAddressInd>
      <LocalChaptersInd>0</LocalChaptersInd>
      <Form990ProvidedToGvrnBodyInd>1</Form990ProvidedToGvrnBodyInd>
      <ConflictOfInterestPolicyInd>1</ConflictOfInterestPolicyInd>
      <AnnualDisclosureCoveredPrsnInd>1</AnnualDisclosureCoveredPrsnInd>
      <RegularMonitoringEnfrcInd>1</RegularMonitoringEnfrcInd>
      <WhistleblowerPolicyInd>1</WhistleblowerPolicyInd>
      <DocumentRetentionPolicyInd>1</DocumentRetentionPolicyInd>
      <CompensationProcessCEOInd>1</CompensationProcessCEOInd>
      <CompensationProcessOtherInd>0</CompensationProcessOtherInd>
      <InvestmentInJointVentureInd>0</InvestmentInJointVentureInd>
      <StatesWhereCopyOfReturnIsFldCd>IL</StatesWhereCopyOfReturnIsFldCd>
      <StatesWhereCopyOfReturnIsFldCd>CA</StatesWhereCopyOfReturnIsFldCd>
      <OwnWebsiteInd>X</OwnWebsiteInd>
      <UponRequestInd>X</UponRequestInd>
      <BooksInCareOfDetail>
        <BusinessName>
          <BusinessNameLine1Txt>JUDITH C SCARL</BusinessNameLine1Txt>
        </BusinessName>
        <PhoneNum>3126657936</PhoneNum>
        <USAddress>
          <AddressLine1Txt>1400 S LAKE SHORE DRIVE</AddressLine1Txt>
          <CityNm>CHICAGO</CityNm>
          <StateAbbreviationCd>IL</StateAbbreviationCd>
          <ZIPCd>60605</ZIPCd>
        </USAddress>
      </BooksInCareOfDetail>
      <Form990PartVIISectionAGrp>
        <PersonNm>COLLEEN HANDEL</PersonNm>
        <TitleTxt>PRESIDENT</TitleTxt>
        <AverageHoursPerWeekRt>3.00</AverageHoursPerWeekRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <OfficerInd>X</OfficerInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>SARA R MORRIS</PersonNm>
        <TitleTxt>PRESIDENT-ELECT</TitleTxt>
        <AverageHoursPerWeekRt>3.00</AverageHoursPerWeekRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <OfficerInd>X</OfficerInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>SUSHMA REDDY</PersonNm>
        <TitleTxt>SECRETARY</TitleTxt>
        <AverageHoursPerWeekRt>3.00</AverageHoursPerWeekRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <OfficerInd>X</OfficerInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>MATTHEW CARLING</PersonNm>
        <TitleTxt>TREASURER</TitleTxt>
        <AverageHoursPerWeekRt>3.00</AverageHoursPerWeekRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <OfficerInd>X</OfficerInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>CHRISTOPHER BALAKRISHNAN</PersonNm>
        <TitleTxt>DIRECTOR</TitleTxt>
        <AverageHoursPerWeekRt>1.00</AverageHoursPerWeekRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>SAHAS BARVE</PersonNm>
        <TitleTxt>DIRECTOR</TitleTxt>
        <AverageHoursPerWeekRt>1.00</AverageHoursPerWeekRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>NANCY CHEN</PersonNm>
        <TitleTxt>DIRECTOR</TitleTxt>
        <AverageHoursPerWeekRt>1.00</AverageHoursPerWeekRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>EMILY B COHEN</PersonNm>
        <TitleTxt>DIRECTOR</TitleTxt>
        <AverageHoursPerWeekRt>1.00</AverageHoursPerWeekRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>KRISTEN COVINO</PersonNm>
        <TitleTxt>DIRECTOR</TitleTxt>
        <AverageHoursPerWeekRt>1.00</AverageHoursPerWeekRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>JACOB DRUCKER</PersonNm>
        <TitleTxt>DIRECTOR</TitleTxt>
        <AverageHoursPerWeekRt>1.00</AverageHoursPerWeekRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <ReportableCompFromOrgAmt>2500</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>CAMILA GOMEZ</PersonNm>
        <TitleTxt>DIRECTOR</TitleTxt>
        <AverageHoursPerWeekRt>1.00</AverageHoursPerWeekRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>DAN MENNILL</PersonNm>
        <TitleTxt>DIRECTOR</TitleTxt>
        <AverageHoursPerWeekRt>1.00</AverageHoursPerWeekRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>CRISTINA MIYAKI</PersonNm>
        <TitleTxt>DIRECTOR</TitleTxt>
        <AverageHoursPerWeekRt>1.00</AverageHoursPerWeekRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>JUAN FRANCISCO ORNELAS</PersonNm>
        <TitleTxt>DIRECTOR</TitleTxt>
        <AverageHoursPerWeekRt>1.00</AverageHoursPerWeekRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>ALLISON SHULTZ</PersonNm>
        <TitleTxt>DIRECTOR</TitleTxt>
        <AverageHoursPerWeekRt>1.00</AverageHoursPerWeekRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>DAIZABURO SHIZUKA</PersonNm>
        <TitleTxt>DIRECTOR</TitleTxt>
        <AverageHoursPerWeekRt>1.00</AverageHoursPerWeekRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>JENNIFER WALSH</PersonNm>
        <TitleTxt>DIRECTOR</TitleTxt>
        <AverageHoursPerWeekRt>1.00</AverageHoursPerWeekRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>OLIVIA WANG</PersonNm>
        <TitleTxt>DIRECTOR</TitleTxt>
        <AverageHoursPerWeekRt>1.00</AverageHoursPerWeekRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>STEVEN R BEISSINGER</PersonNm>
        <TitleTxt>PAST PRESIDENT</TitleTxt>
        <AverageHoursPerWeekRt>1.00</AverageHoursPerWeekRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>KATHY MARTIN</PersonNm>
        <TitleTxt>PAST PRESIDENT</TitleTxt>
        <AverageHoursPerWeekRt>1.00</AverageHoursPerWeekRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>MICHAEL S WEBSTER</PersonNm>
        <TitleTxt>PAST PRESIDENT</TitleTxt>
        <AverageHoursPerWeekRt>1.00</AverageHoursPerWeekRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>W ALICE BOYLE</PersonNm>
        <TitleTxt>DIRECTOR - TERM</TitleTxt>
        <AverageHoursPerWeekRt>1.00</AverageHoursPerWeekRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>CARLOS DANIEL CADENA</PersonNm>
        <TitleTxt>DIRECTOR - TERM</TitleTxt>
        <AverageHoursPerWeekRt>1.00</AverageHoursPerWeekRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>COURTNEY J CONWAY</PersonNm>
        <TitleTxt>DIRECTOR - TERM</TitleTxt>
        <AverageHoursPerWeekRt>1.00</AverageHoursPerWeekRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>TERESA PEGAN</PersonNm>
        <TitleTxt>DIRECTOR - TERM</TitleTxt>
        <AverageHoursPerWeekRt>1.00</AverageHoursPerWeekRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>MORGAN W TINGLEY</PersonNm>
        <TitleTxt>DIRECTOR - TERM</TitleTxt>
        <AverageHoursPerWeekRt>1.00</AverageHoursPerWeekRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>JUDITH SCARL</PersonNm>
        <TitleTxt>EXECUTIVE DIRECTOR</TitleTxt>
        <AverageHoursPerWeekRt>40.00</AverageHoursPerWeekRt>
        <OfficerInd>X</OfficerInd>
        <ReportableCompFromOrgAmt>167700</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>5031</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>CRYSTAL RUIZ</PersonNm>
        <TitleTxt>DIRECTOR OF OPERATIONS AND ADMIN</TitleTxt>
        <AverageHoursPerWeekRt>40.00</AverageHoursPerWeekRt>
        <HighestCompensatedEmployeeInd>X</HighestCompensatedEmployeeInd>
        <ReportableCompFromOrgAmt>106014</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>3180</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <TotalReportableCompFromOrgAmt>276214</TotalReportableCompFromOrgAmt>
      <TotReportableCompRltdOrgAmt>0</TotReportableCompRltdOrgAmt>
      <TotalOtherCompensationAmt>8211</TotalOtherCompensationAmt>
      <IndivRcvdGreaterThan100KCnt>2</IndivRcvdGreaterThan100KCnt>
      <FormerOfcrEmployeesListedInd>0</FormerOfcrEmployeesListedInd>
      <TotalCompGreaterThan150KInd>1</TotalCompGreaterThan150KInd>
      <CompensationFromOtherSrcsInd>0</CompensationFromOtherSrcsInd>
      <CntrctRcvdGreaterThan100KCnt>0</CntrctRcvdGreaterThan100KCnt>
      <MembershipDuesAmt>131347</MembershipDuesAmt>
      <AllOtherContributionsAmt>41713</AllOtherContributionsAmt>
      <TotalContributionsAmt>173060</TotalContributionsAmt>
      <ProgramServiceRevenueGrp>
        <Desc>ANNUAL MEETING</Desc>
        <BusinessCd>900099</BusinessCd>
        <TotalRevenueColumnAmt>423511</TotalRevenueColumnAmt>
        <RelatedOrExemptFuncIncomeAmt>423511</RelatedOrExemptFuncIncomeAmt>
      </ProgramServiceRevenueGrp>
      <ProgramServiceRevenueGrp>
        <Desc>PUBLICATIONS</Desc>
        <BusinessCd>513120</BusinessCd>
        <TotalRevenueColumnAmt>99884</TotalRevenueColumnAmt>
        <RelatedOrExemptFuncIncomeAmt>98823</RelatedOrExemptFuncIncomeAmt>
        <UnrelatedBusinessRevenueAmt>1061</UnrelatedBusinessRevenueAmt>
      </ProgramServiceRevenueGrp>
      <TotalProgramServiceRevenueAmt>523395</TotalProgramServiceRevenueAmt>
      <InvestmentIncomeGrp>
        <TotalRevenueColumnAmt>469898</TotalRevenueColumnAmt>
        <ExclusionAmt>469898</ExclusionAmt>
      </InvestmentIncomeGrp>
      <RoyaltiesRevenueGrp>
        <TotalRevenueColumnAmt>125471</TotalRevenueColumnAmt>
        <ExclusionAmt>125471</ExclusionAmt>
      </RoyaltiesRevenueGrp>
      <GrossAmountSalesAssetsGrp>
        <SecuritiesAmt>1409000</SecuritiesAmt>
      </GrossAmountSalesAssetsGrp>
      <LessCostOthBasisSalesExpnssGrp>
        <SecuritiesAmt>1355408</SecuritiesAmt>
      </LessCostOthBasisSalesExpnssGrp>
      <GainOrLossGrp>
        <SecuritiesAmt>53592</SecuritiesAmt>
      </GainOrLossGrp>
      <NetGainOrLossInvestmentsGrp>
        <TotalRevenueColumnAmt>53592</TotalRevenueColumnAmt>
        <ExclusionAmt>53592</ExclusionAmt>
      </NetGainOrLossInvestmentsGrp>
      <TotalRevenueGrp>
        <TotalRevenueColumnAmt>1345416</TotalRevenueColumnAmt>
        <RelatedOrExemptFuncIncomeAmt>522334</RelatedOrExemptFuncIncomeAmt>
        <UnrelatedBusinessRevenueAmt>1061</UnrelatedBusinessRevenueAmt>
        <ExclusionAmt>648961</ExclusionAmt>
      </TotalRevenueGrp>
      <GrantsToDomesticOrgsGrp>
        <TotalAmt>78762</TotalAmt>
        <ProgramServicesAmt>78762</ProgramServicesAmt>
      </GrantsToDomesticOrgsGrp>
      <GrantsToDomesticIndividualsGrp>
        <TotalAmt>140193</TotalAmt>
        <ProgramServicesAmt>140193</ProgramServicesAmt>
      </GrantsToDomesticIndividualsGrp>
      <ForeignGrantsGrp>
        <TotalAmt>108232</TotalAmt>
        <ProgramServicesAmt>108232</ProgramServicesAmt>
      </ForeignGrantsGrp>
      <CompCurrentOfcrDirectorsGrp>
        <TotalAmt>175231</TotalAmt>
        <ProgramServicesAmt>136680</ProgramServicesAmt>
        <ManagementAndGeneralAmt>38376</ManagementAndGeneralAmt>
        <FundraisingAmt>175</FundraisingAmt>
      </CompCurrentOfcrDirectorsGrp>
      <OtherSalariesAndWagesGrp>
        <TotalAmt>377261</TotalAmt>
        <ProgramServicesAmt>202615</ProgramServicesAmt>
        <ManagementAndGeneralAmt>173290</ManagementAndGeneralAmt>
        <FundraisingAmt>1356</FundraisingAmt>
      </OtherSalariesAndWagesGrp>
      <PensionPlanContributionsGrp>
        <TotalAmt>9626</TotalAmt>
        <ProgramServicesAmt>4090</ProgramServicesAmt>
        <ManagementAndGeneralAmt>5494</ManagementAndGeneralAmt>
        <FundraisingAmt>42</FundraisingAmt>
      </PensionPlanContributionsGrp>
      <OtherEmployeeBenefitsGrp>
        <TotalAmt>26070</TotalAmt>
        <ProgramServicesAmt>18609</ProgramServicesAmt>
        <ManagementAndGeneralAmt>7425</ManagementAndGeneralAmt>
        <FundraisingAmt>36</FundraisingAmt>
      </OtherEmployeeBenefitsGrp>
      <PayrollTaxesGrp>
        <TotalAmt>45232</TotalAmt>
        <ProgramServicesAmt>28270</ProgramServicesAmt>
        <ManagementAndGeneralAmt>16839</ManagementAndGeneralAmt>
        <FundraisingAmt>123</FundraisingAmt>
      </PayrollTaxesGrp>
      <FeesForServicesLegalGrp>
        <TotalAmt>8445</TotalAmt>
        <ProgramServicesAmt>2484</ProgramServicesAmt>
        <ManagementAndGeneralAmt>5961</ManagementAndGeneralAmt>
      </FeesForServicesLegalGrp>
      <FeesForServicesAccountingGrp>
        <TotalAmt>61540</TotalAmt>
        <ManagementAndGeneralAmt>61540</ManagementAndGeneralAmt>
      </FeesForServicesAccountingGrp>
      <FeesForServicesOtherGrp>
        <TotalAmt>80078</TotalAmt>
        <ProgramServicesAmt>74180</ProgramServicesAmt>
        <ManagementAndGeneralAmt>5898</ManagementAndGeneralAmt>
      </FeesForServicesOtherGrp>
      <OfficeExpensesGrp>
        <TotalAmt>57077</TotalAmt>
        <ProgramServicesAmt>39452</ProgramServicesAmt>
        <ManagementAndGeneralAmt>17611</ManagementAndGeneralAmt>
        <FundraisingAmt>14</FundraisingAmt>
      </OfficeExpensesGrp>
      <InformationTechnologyGrp>
        <TotalAmt>34945</TotalAmt>
        <ProgramServicesAmt>21765</ProgramServicesAmt>
        <ManagementAndGeneralAmt>13000</ManagementAndGeneralAmt>
        <FundraisingAmt>180</FundraisingAmt>
      </InformationTechnologyGrp>
      <TravelGrp>
        <TotalAmt>26903</TotalAmt>
        <ProgramServicesAmt>24924</ProgramServicesAmt>
        <ManagementAndGeneralAmt>1979</ManagementAndGeneralAmt>
      </TravelGrp>
      <ConferencesMeetingsGrp>
        <TotalAmt>288180</TotalAmt>
        <ProgramServicesAmt>287941</ProgramServicesAmt>
        <ManagementAndGeneralAmt>239</ManagementAndGeneralAmt>
      </ConferencesMeetingsGrp>
      <InterestGrp>
        <TotalAmt>12095</TotalAmt>
        <ProgramServicesAmt>11953</ProgramServicesAmt>
        <ManagementAndGeneralAmt>142</ManagementAndGeneralAmt>
      </InterestGrp>
      <DepreciationDepletionGrp>
        <TotalAmt>2152</TotalAmt>
        <ProgramServicesAmt>1494</ProgramServicesAmt>
        <ManagementAndGeneralAmt>652</ManagementAndGeneralAmt>
        <FundraisingAmt>6</FundraisingAmt>
      </DepreciationDepletionGrp>
      <InsuranceGrp>
        <TotalAmt>5334</TotalAmt>
        <ProgramServicesAmt>3699</ProgramServicesAmt>
        <ManagementAndGeneralAmt>1621</ManagementAndGeneralAmt>
        <FundraisingAmt>14</FundraisingAmt>
      </InsuranceGrp>
      <OtherExpensesGrp>
        <Desc>PUBLISHING</Desc>
        <TotalAmt>63440</TotalAmt>
        <ProgramServicesAmt>63440</ProgramServicesAmt>
      </OtherExpensesGrp>
      <TotalFunctionalExpensesGrp>
        <TotalAmt>1600796</TotalAmt>
        <ProgramServicesAmt>1248783</ProgramServicesAmt>
        <ManagementAndGeneralAmt>350067</ManagementAndGeneralAmt>
        <FundraisingAmt>1946</FundraisingAmt>
      </TotalFunctionalExpensesGrp>
      <CashNonInterestBearingGrp>
        <BOYAmt>225828</BOYAmt>
        <EOYAmt>148205</EOYAmt>
      </CashNonInterestBearingGrp>
      <PledgesAndGrantsReceivableGrp>
        <BOYAmt>114325</BOYAmt>
        <EOYAmt>7500</EOYAmt>
      </PledgesAndGrantsReceivableGrp>
      <AccountsReceivableGrp>
        <BOYAmt>150726</BOYAmt>
        <EOYAmt>78511</EOYAmt>
      </AccountsReceivableGrp>
      <PrepaidExpensesDefrdChargesGrp>
        <BOYAmt>89926</BOYAmt>
        <EOYAmt>52355</EOYAmt>
      </PrepaidExpensesDefrdChargesGrp>
      <LandBldgEquipCostOrOtherBssAmt>12973</LandBldgEquipCostOrOtherBssAmt>
      <LandBldgEquipAccumDeprecAmt>9076</LandBldgEquipAccumDeprecAmt>
      <LandBldgEquipBasisNetGrp>
        <BOYAmt>6049</BOYAmt>
        <EOYAmt>3897</EOYAmt>
      </LandBldgEquipBasisNetGrp>
      <InvestmentsPubTradedSecGrp>
        <BOYAmt>23726664</BOYAmt>
        <EOYAmt>28453774</EOYAmt>
      </InvestmentsPubTradedSecGrp>
      <OtherAssetsTotalGrp>
        <BOYAmt>300729</BOYAmt>
        <EOYAmt>334466</EOYAmt>
      </OtherAssetsTotalGrp>
      <TotalAssetsGrp>
        <BOYAmt>24614247</BOYAmt>
        <EOYAmt>29078708</EOYAmt>
      </TotalAssetsGrp>
      <AccountsPayableAccrExpnssGrp>
        <BOYAmt>22125</BOYAmt>
        <EOYAmt>26147</EOYAmt>
      </AccountsPayableAccrExpnssGrp>
      <DeferredRevenueGrp>
        <BOYAmt>533878</BOYAmt>
        <EOYAmt>362006</EOYAmt>
      </DeferredRevenueGrp>
      <TotalLiabilitiesGrp>
        <BOYAmt>556003</BOYAmt>
        <EOYAmt>388153</EOYAmt>
      </TotalLiabilitiesGrp>
      <OrganizationFollowsFASB117Ind>X</OrganizationFollowsFASB117Ind>
      <NoDonorRestrictionNetAssetsGrp>
        <BOYAmt>10899393</BOYAmt>
        <EOYAmt>13007099</EOYAmt>
      </NoDonorRestrictionNetAssetsGrp>
      <DonorRestrictionNetAssetsGrp>
        <BOYAmt>13158851</BOYAmt>
        <EOYAmt>15683456</EOYAmt>
      </DonorRestrictionNetAssetsGrp>
      <TotalNetAssetsFundBalanceGrp>
        <BOYAmt>24058244</BOYAmt>
        <EOYAmt>28690555</EOYAmt>
      </TotalNetAssetsFundBalanceGrp>
      <TotLiabNetAssetsFundBalanceGrp>
        <BOYAmt>24614247</BOYAmt>
        <EOYAmt>29078708</EOYAmt>
      </TotLiabNetAssetsFundBalanceGrp>
      <ReconcilationRevenueExpnssAmt>-255380</ReconcilationRevenueExpnssAmt>
      <NetUnrlzdGainsLossesInvstAmt>4887691</NetUnrlzdGainsLossesInvstAmt>
      <OtherChangesInNetAssetsAmt>0</OtherChangesInNetAssetsAmt>
      <MethodOfAccountingAccrualInd>X</MethodOfAccountingAccrualInd>
      <AccountantCompileOrReviewInd>0</AccountantCompileOrReviewInd>
      <FSAuditedInd>1</FSAuditedInd>
      <FSAuditedBasisGrp>
        <SeparateBasisFinclStmtInd>X</SeparateBasisFinclStmtInd>
      </FSAuditedBasisGrp>
      <AuditCommitteeInd>1</AuditCommitteeInd>
      <FederalGrantAuditRequiredInd>0</FederalGrantAuditRequiredInd>
    </IRS990>
    <IRS990ScheduleA documentId="RetDoc1039100001">
      <PublicOrganization170Ind>X</PublicOrganization170Ind>
      <GiftsGrantsContriRcvd170Grp>
        <CurrentTaxYearMinus4YearsAmt>311399</CurrentTaxYearMinus4YearsAmt>
        <CurrentTaxYearMinus3YearsAmt>319847</CurrentTaxYearMinus3YearsAmt>
        <CurrentTaxYearMinus2YearsAmt>216325</CurrentTaxYearMinus2YearsAmt>
        <CurrentTaxYearMinus1YearAmt>385101</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>173060</CurrentTaxYearAmt>
        <TotalAmt>1405732</TotalAmt>
      </GiftsGrantsContriRcvd170Grp>
      <TotalCalendarYear170Grp>
        <CurrentTaxYearMinus4YearsAmt>311399</CurrentTaxYearMinus4YearsAmt>
        <CurrentTaxYearMinus3YearsAmt>319847</CurrentTaxYearMinus3YearsAmt>
        <CurrentTaxYearMinus2YearsAmt>216325</CurrentTaxYearMinus2YearsAmt>
        <CurrentTaxYearMinus1YearAmt>385101</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>173060</CurrentTaxYearAmt>
        <TotalAmt>1405732</TotalAmt>
      </TotalCalendarYear170Grp>
      <PublicSupportTotal170Amt>1405732</PublicSupportTotal170Amt>
      <GrossInvestmentIncome170Grp>
        <CurrentTaxYearMinus4YearsAmt>514972</CurrentTaxYearMinus4YearsAmt>
        <CurrentTaxYearMinus3YearsAmt>504401</CurrentTaxYearMinus3YearsAmt>
        <CurrentTaxYearMinus2YearsAmt>602307</CurrentTaxYearMinus2YearsAmt>
        <CurrentTaxYearMinus1YearAmt>517861</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>595369</CurrentTaxYearAmt>
        <TotalAmt>2734910</TotalAmt>
      </GrossInvestmentIncome170Grp>
      <UnrelatedBusinessNetIncm170Grp>
        <CurrentTaxYearMinus1YearAmt>1606</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>1061</CurrentTaxYearAmt>
        <TotalAmt>2667</TotalAmt>
      </UnrelatedBusinessNetIncm170Grp>
      <OtherIncome170Grp>
        <CurrentTaxYearMinus3YearsAmt>447</CurrentTaxYearMinus3YearsAmt>
        <CurrentTaxYearMinus2YearsAmt>673</CurrentTaxYearMinus2YearsAmt>
        <TotalAmt>1120</TotalAmt>
      </OtherIncome170Grp>
      <TotalSupportAmt>4144429</TotalSupportAmt>
      <GrossReceiptsRltdActivitiesAmt>1829819</GrossReceiptsRltdActivitiesAmt>
      <PublicSupportCY170Pct>0.33920</PublicSupportCY170Pct>
      <PublicSupportPY170Pct>0.37020</PublicSupportPY170Pct>
      <ThirtyThrPctSuprtTestsCY170Ind>X</ThirtyThrPctSuprtTestsCY170Ind>
    </IRS990ScheduleA>
    <IRS990ScheduleB documentId="RetDoc1234500001">
      <ContributorInformationGrp>
        <ContributorNum>RESTRICTED</ContributorNum>
        <ContributorBusinessName>
          <BusinessNameLine1>RESTRICTED</BusinessNameLine1>
        </ContributorBusinessName>
        <ContributorUSAddress>
          <AddressLine1>RESTRICTED</AddressLine1>
          <AddressLine2>RESTRICTED</AddressLine2>
          <City>RESTRICTED</City>
          <State>RESTRICTED</State>
          <ZIPCode>RESTRICTED</ZIPCode>
        </ContributorUSAddress>
        <TotalContributionsAmt>RESTRICTED</TotalContributionsAmt>
      </ContributorInformationGrp>
    </IRS990ScheduleB>
    <IRS990ScheduleD documentId="RetDoc1040000001">
      <CYEndwmtFundGrp>
        <BeginningYearBalanceAmt>23726664</BeginningYearBalanceAmt>
        <ContributionsAmt>27718</ContributionsAmt>
        <InvestmentEarningsOrLossesAmt>5377110</InvestmentEarningsOrLossesAmt>
        <OtherExpendituresAmt>-677718</OtherExpendituresAmt>
        <EndYearBalanceAmt>28453774</EndYearBalanceAmt>
      </CYEndwmtFundGrp>
      <CYMinus1YrEndwmtFundGrp>
        <BeginningYearBalanceAmt>30501778</BeginningYearBalanceAmt>
        <ContributionsAmt>102808</ContributionsAmt>
        <InvestmentEarningsOrLossesAmt>-6076745</InvestmentEarningsOrLossesAmt>
        <OtherExpendituresAmt>-801177</OtherExpendituresAmt>
        <EndYearBalanceAmt>23726664</EndYearBalanceAmt>
      </CYMinus1YrEndwmtFundGrp>
      <CYMinus2YrEndwmtFundGrp>
        <BeginningYearBalanceAmt>26345850</BeginningYearBalanceAmt>
        <ContributionsAmt>162490</ContributionsAmt>
        <InvestmentEarningsOrLossesAmt>4669570</InvestmentEarningsOrLossesAmt>
        <OtherExpendituresAmt>676132</OtherExpendituresAmt>
        <EndYearBalanceAmt>30501778</EndYearBalanceAmt>
      </CYMinus2YrEndwmtFundGrp>
      <CYMinus3YrEndwmtFundGrp>
        <BeginningYearBalanceAmt>22261870</BeginningYearBalanceAmt>
        <ContributionsAmt>7753</ContributionsAmt>
        <InvestmentEarningsOrLossesAmt>4524844</InvestmentEarningsOrLossesAmt>
        <OtherExpendituresAmt>448617</OtherExpendituresAmt>
        <EndYearBalanceAmt>26345850</EndYearBalanceAmt>
      </CYMinus3YrEndwmtFundGrp>
      <CYMinus4YrEndwmtFundGrp>
        <BeginningYearBalanceAmt>18319191</BeginningYearBalanceAmt>
        <ContributionsAmt>39366</ContributionsAmt>
        <InvestmentEarningsOrLossesAmt>4493928</InvestmentEarningsOrLossesAmt>
        <OtherExpendituresAmt>590615</OtherExpendituresAmt>
        <EndYearBalanceAmt>22261870</EndYearBalanceAmt>
      </CYMinus4YrEndwmtFundGrp>
      <BoardDesignatedBalanceEOYPct>0.46056</BoardDesignatedBalanceEOYPct>
      <PrmnntEndowmentBalanceEOYPct>0.01848</PrmnntEndowmentBalanceEOYPct>
      <TermEndowmentBalanceEOYPct>0.52095</TermEndowmentBalanceEOYPct>
      <EndowmentsHeldUnrelatedOrgInd>0</EndowmentsHeldUnrelatedOrgInd>
      <EndowmentsHeldRelatedOrgInd>0</EndowmentsHeldRelatedOrgInd>
      <EquipmentGrp>
        <OtherCostOrOtherBasisAmt>1686</OtherCostOrOtherBasisAmt>
        <DepreciationAmt>1686</DepreciationAmt>
        <BookValueAmt>0</BookValueAmt>
      </EquipmentGrp>
      <OtherLandBuildingsGrp>
        <OtherCostOrOtherBasisAmt>11287</OtherCostOrOtherBasisAmt>
        <DepreciationAmt>7390</DepreciationAmt>
        <BookValueAmt>3897</BookValueAmt>
      </OtherLandBuildingsGrp>
      <TotalBookValueLandBuildingsAmt>3897</TotalBookValueLandBuildingsAmt>
      <FootnoteTextInd>X</FootnoteTextInd>
      <TotalRevEtcAuditedFinclStmtAmt>6233107</TotalRevEtcAuditedFinclStmtAmt>
      <NetUnrealizedGainsInvstAmt>4887691</NetUnrealizedGainsInvstAmt>
      <RevenueNotReportedAmt>4887691</RevenueNotReportedAmt>
      <RevenueSubtotalAmt>1345416</RevenueSubtotalAmt>
      <RevenueNotReportedFinclStmtAmt>0</RevenueNotReportedFinclStmtAmt>
      <TotalRevenuePerForm990Amt>1345416</TotalRevenuePerForm990Amt>
      <TotExpnsEtcAuditedFinclStmtAmt>1600796</TotExpnsEtcAuditedFinclStmtAmt>
      <ExpensesNotReportedAmt>0</ExpensesNotReportedAmt>
      <ExpensesSubtotalAmt>1600796</ExpensesSubtotalAmt>
      <ExpensesNotRptFinclStmtAmt>0</ExpensesNotRptFinclStmtAmt>
      <TotalExpensesPerForm990Amt>1600796</TotalExpensesPerForm990Amt>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>PART V, LINE 4:</FormAndLineReferenceDesc>
        <ExplanationTxt>TO PROVIDE GRANTS FOR RESEARCH AND EDUCATION IN THE FIELD OF ORNITHOLOGY.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>PART X, LINE 2:</FormAndLineReferenceDesc>
        <ExplanationTxt>AOS IS EXEMPT FROM FEDERAL INCOME TAXES UNDER SECTION 501(C)(3) OF THE INTERNAL REVENUE CODE EXCEPT FOR ANY UNRELATED BUSINESS INCOME. AOS HAS ADOPTED THE REQUIREMENTS FOR ACCOUNTING FOR UNCERTAIN TAX POSITIONS AND MANAGEMENT HAS DETERMINED THAT AOS WAS NOT REQUIRED TO RECORD A LIABILITY RELATED TO UNCERTAIN TAX POSITIONS AS OF DECEMBER 31, 2023 OR 2022.</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleD>
    <IRS990ScheduleF documentId="RetDoc1040500001">
      <GrantRecordsMaintainedInd>1</GrantRecordsMaintainedInd>
      <AccountActivitiesOutsideUSGrp>
        <RegionTxt>NORTH AMERICA - CANADA AND MEXICO, BUT NOT THE UNITED STATES</RegionTxt>
        <OfficesCnt>0</OfficesCnt>
        <EmployeeCnt>0</EmployeeCnt>
        <TypeOfActivitiesConductedTxt>GRANTMAKING</TypeOfActivitiesConductedTxt>
        <RegionTotalExpendituresAmt>46863</RegionTotalExpendituresAmt>
      </AccountActivitiesOutsideUSGrp>
      <AccountActivitiesOutsideUSGrp>
        <RegionTxt>SOUTH AMERICA - ARGENTINA, BOLIVIA, BRAZIL, CHILE, COLUMBIA, ECUADOR,</RegionTxt>
        <OfficesCnt>0</OfficesCnt>
        <EmployeeCnt>0</EmployeeCnt>
        <TypeOfActivitiesConductedTxt>GRANTMAKING</TypeOfActivitiesConductedTxt>
        <RegionTotalExpendituresAmt>49989</RegionTotalExpendituresAmt>
      </AccountActivitiesOutsideUSGrp>
      <AccountActivitiesOutsideUSGrp>
        <RegionTxt>EUROPE (INCLUDING ICELAND AND GREENLAND)</RegionTxt>
        <OfficesCnt>0</OfficesCnt>
        <EmployeeCnt>0</EmployeeCnt>
        <TypeOfActivitiesConductedTxt>GRANTMAKING</TypeOfActivitiesConductedTxt>
        <RegionTotalExpendituresAmt>4780</RegionTotalExpendituresAmt>
      </AccountActivitiesOutsideUSGrp>
      <AccountActivitiesOutsideUSGrp>
        <RegionTxt>CENTRAL AMERICA AND THE CARIBBEAN</RegionTxt>
        <OfficesCnt>0</OfficesCnt>
        <EmployeeCnt>0</EmployeeCnt>
        <TypeOfActivitiesConductedTxt>GRANTMAKING</TypeOfActivitiesConductedTxt>
        <RegionTotalExpendituresAmt>1100</RegionTotalExpendituresAmt>
      </AccountActivitiesOutsideUSGrp>
      <AccountActivitiesOutsideUSGrp>
        <RegionTxt>SOUTH ASIA</RegionTxt>
        <OfficesCnt>0</OfficesCnt>
        <EmployeeCnt>0</EmployeeCnt>
        <TypeOfActivitiesConductedTxt>GRANTMAKING</TypeOfActivitiesConductedTxt>
        <RegionTotalExpendituresAmt>5500</RegionTotalExpendituresAmt>
      </AccountActivitiesOutsideUSGrp>
      <SubtotalOfficesCnt>0</SubtotalOfficesCnt>
      <SubtotalEmployeesCnt>0</SubtotalEmployeesCnt>
      <ContinuationTotalOfficeCnt>0</ContinuationTotalOfficeCnt>
      <ContinuationTotalEmployeeCnt>0</ContinuationTotalEmployeeCnt>
      <TotalOfficeCnt>0</TotalOfficeCnt>
      <TotalEmployeeCnt>0</TotalEmployeeCnt>
      <SubtotalSpentAmt>108232</SubtotalSpentAmt>
      <ContinuationSpentAmt>0</ContinuationSpentAmt>
      <TotalSpentAmt>108232</TotalSpentAmt>
      <GrantsToOrgOutsideUSGrp>
        <RegionTxt>NORTH AMERICA - CANADA AND MEXICO, BUT NOT THE UNITED STATES</RegionTxt>
        <PurposeOfGrantTxt>RESEARCH AWARDS SUPPORTING STUDENT AOS MEMBERS BASED ON THE QUALITY OF THE RESEARCH AS DESCRIBED ON THEIR APPLICATION</PurposeOfGrantTxt>
        <CashGrantAmt>2415</CashGrantAmt>
        <MannerOfCashDisbursementTxt>WIRE TRANSFER</MannerOfCashDisbursementTxt>
        <NonCashAssistanceAmt>0</NonCashAssistanceAmt>
      </GrantsToOrgOutsideUSGrp>
      <GrantsToOrgOutsideUSGrp>
        <RegionTxt>NORTH AMERICA - CANADA AND MEXICO, BUT NOT THE UNITED STATES</RegionTxt>
        <PurposeOfGrantTxt>GRINNELL MEMORIAL RESEARCH AWARDS SUPPORT GRADUATE STUDENT AOS MEMBER BASED ON THE QUALITY OF THE RESEARCH AS DESCRIBED IN THEIR APPLICATION</PurposeOfGrantTxt>
        <CashGrantAmt>2500</CashGrantAmt>
        <MannerOfCashDisbursementTxt>WIRE TRANSFER</MannerOfCashDisbursementTxt>
        <NonCashAssistanceAmt>0</NonCashAssistanceAmt>
      </GrantsToOrgOutsideUSGrp>
      <GrantsToOrgOutsideUSGrp>
        <RegionTxt>NORTH AMERICA - CANADA AND MEXICO, BUT NOT THE UNITED STATES</RegionTxt>
        <PurposeOfGrantTxt>WERNER AND HILDEGARD HESSE RESEARCH AWARDS SUPPORT GRADUATE STUDENT AOS MEMBERS BASED ON THE QUALITY OF THE RESEARCH AS DESCRIBED IN THEIR APPLIATION</PurposeOfGrantTxt>
        <CashGrantAmt>2500</CashGrantAmt>
        <MannerOfCashDisbursementTxt>WIRE TRANSFER</MannerOfCashDisbursementTxt>
        <NonCashAssistanceAmt>0</NonCashAssistanceAmt>
      </GrantsToOrgOutsideUSGrp>
      <GrantsToOrgOutsideUSGrp>
        <RegionTxt>NORTH AMERICA - CANADA AND MEXICO, BUT NOT THE UNITED STATES</RegionTxt>
        <PurposeOfGrantTxt>RESEARCH AWARDS SUPPORTING STUDENT AOS MEMBERS BASED ON THE QUALITY OF THE RESEARCH AS DESCRIBED IN THEIR APPLICATION</PurposeOfGrantTxt>
        <CashGrantAmt>2500</CashGrantAmt>
        <MannerOfCashDisbursementTxt>WIRE TRANSFER</MannerOfCashDisbursementTxt>
        <NonCashAssistanceAmt>0</NonCashAssistanceAmt>
      </GrantsToOrgOutsideUSGrp>
      <GrantsToOrgOutsideUSGrp>
        <RegionTxt>NORTH AMERICA - CANADA AND MEXICO, BUT NOT THE UNITED STATES</RegionTxt>
        <PurposeOfGrantTxt>RESEARCH AWARDS SUPPORTING STUDENT AOS MEMBERS BASED ON THE QUALITY OF THE RESEARCH AS DESCRIBED IN THEIR APPLICATION</PurposeOfGrantTxt>
        <CashGrantAmt>2500</CashGrantAmt>
        <MannerOfCashDisbursementTxt>WIRE TRANSFER</MannerOfCashDisbursementTxt>
        <NonCashAssistanceAmt>0</NonCashAssistanceAmt>
      </GrantsToOrgOutsideUSGrp>
      <GrantsToOrgOutsideUSGrp>
        <RegionTxt>SOUTH AMERICA</RegionTxt>
        <PurposeOfGrantTxt>RESEARCH AWARDS SUPPORTING STUDENT AOS MEMBERS BASED ON THE QUALITY OF THE RESEARCH AS DESCRIBED IN THEIR APPLICATION</PurposeOfGrantTxt>
        <CashGrantAmt>5000</CashGrantAmt>
        <MannerOfCashDisbursementTxt>WIRE TRANSFER</MannerOfCashDisbursementTxt>
        <NonCashAssistanceAmt>0</NonCashAssistanceAmt>
      </GrantsToOrgOutsideUSGrp>
      <GrantsToOrgOutsideUSGrp>
        <RegionTxt>SOUTH AMERICA</RegionTxt>
        <PurposeOfGrantTxt>KESSEL FELLOWSHIP FOR EARLY CAREER SCIENTISTS PROVIDING TWO YEARS OF SUPPORTING FOR THE FULL RANGE OF ORNITHOLOGICAL RESEARCH AS DESCRIBED IN THEIR APPLICATION</PurposeOfGrantTxt>
        <CashGrantAmt>15000</CashGrantAmt>
        <MannerOfCashDisbursementTxt>WIRE TRANSFER</MannerOfCashDisbursementTxt>
        <NonCashAssistanceAmt>0</NonCashAssistanceAmt>
      </GrantsToOrgOutsideUSGrp>
      <GrantsToOrgOutsideUSGrp>
        <RegionTxt>SOUTH AMERICA</RegionTxt>
        <PurposeOfGrantTxt>KESSEL FELLOWSHIP FOR EARLY CAREER SCIENTISTS PROVIDING TWO YEARS OF SUPPORTING FOR THE FULL RANGE OF ORNITHOLOGICAL RESEARCH AS DESCRIBED IN THEIR APPLICATION</PurposeOfGrantTxt>
        <CashGrantAmt>15000</CashGrantAmt>
        <MannerOfCashDisbursementTxt>WIRE TRANSFER</MannerOfCashDisbursementTxt>
        <NonCashAssistanceAmt>0</NonCashAssistanceAmt>
      </GrantsToOrgOutsideUSGrp>
      <Total501c3OrgCnt>8</Total501c3OrgCnt>
      <ForeignIndividualsGrantsGrp>
        <TypeOfAssistanceTxt>STUDENT TRAVEL GRANTS SUPPORT ANNUAL MEETING ATTENDANCE FOR STUDENT MEMBERS</TypeOfAssistanceTxt>
        <RegionTxt>CENTRAL AMERICA AND THE CARIBBEAN</RegionTxt>
        <RecipientCnt>1</RecipientCnt>
        <CashGrantAmt>1100</CashGrantAmt>
        <MannerOfCashDisbursementTxt>CHECK</MannerOfCashDisbursementTxt>
      </ForeignIndividualsGrantsGrp>
      <ForeignIndividualsGrantsGrp>
        <TypeOfAssistanceTxt>AOS STUDENT PRESENTATION AWARDS TO STUDENT AOS MEMBERS BASED ON THE QUALITY OF THEIR RESEARCH PRESENTED AT THE ANNUAL MEETING</TypeOfAssistanceTxt>
        <RegionTxt>EUROPE (INCLUDING ICELAND AND GREENLAND)</RegionTxt>
        <RecipientCnt>2</RecipientCnt>
        <CashGrantAmt>2780</CashGrantAmt>
        <MannerOfCashDisbursementTxt>CHECK</MannerOfCashDisbursementTxt>
      </ForeignIndividualsGrantsGrp>
      <ForeignIndividualsGrantsGrp>
        <TypeOfAssistanceTxt>COUES AWARD TO A SENIOR PROFESSIONAL AWARD HONORING SIGNIFICANT CONTRIBUTION TO ORNITHOLOGY</TypeOfAssistanceTxt>
        <RegionTxt>EUROPE (INCLUDING ICELAND AND GREENLAND)</RegionTxt>
        <RecipientCnt>1</RecipientCnt>
        <CashGrantAmt>500</CashGrantAmt>
        <MannerOfCashDisbursementTxt>CHECK</MannerOfCashDisbursementTxt>
      </ForeignIndividualsGrantsGrp>
      <ForeignIndividualsGrantsGrp>
        <TypeOfAssistanceTxt>WESLEY LANYON AWARD RECOGNIZES THE EARLY CAREER ORNITHOLOGIST WHO AUTHORS THE BEST INTEGRATIVE PAPER ON AVIAN SCIENCE IN EITHER OF THE TWO AOS JOURNALS</TypeOfAssistanceTxt>
        <RegionTxt>EUROPE (INCLUDING ICELAND AND GREENLAND)</RegionTxt>
        <RecipientCnt>1</RecipientCnt>
        <CashGrantAmt>1500</CashGrantAmt>
        <MannerOfCashDisbursementTxt>CHECK</MannerOfCashDisbursementTxt>
      </ForeignIndividualsGrantsGrp>
      <ForeignIndividualsGrantsGrp>
        <TypeOfAssistanceTxt>STUDENT TRAVEL GRANTS SUPPORT ANNUAL MEETING ATTENDANCE FOR STUDENT MEMBERS</TypeOfAssistanceTxt>
        <RegionTxt>NORTH AMERICA - CANADA AND MEXICO, BUT NOT THE UNITED STATES</RegionTxt>
        <RecipientCnt>37</RecipientCnt>
        <CashGrantAmt>20654</CashGrantAmt>
        <MannerOfCashDisbursementTxt>CHECK</MannerOfCashDisbursementTxt>
      </ForeignIndividualsGrantsGrp>
      <ForeignIndividualsGrantsGrp>
        <TypeOfAssistanceTxt>NED K JOHNSON EARLY INVESTIGATOR AWARD RECOGNIZES PROMISING WORK BY A RESEARCH IN ANY FIELD OF ORNITHOLOGY</TypeOfAssistanceTxt>
        <RegionTxt>NORTH AMERICA - CANADA AND MEXICO, BUT NOT THE UNITED STATES</RegionTxt>
        <RecipientCnt>1</RecipientCnt>
        <CashGrantAmt>1500</CashGrantAmt>
        <MannerOfCashDisbursementTxt>CHECK</MannerOfCashDisbursementTxt>
      </ForeignIndividualsGrantsGrp>
      <ForeignIndividualsGrantsGrp>
        <TypeOfAssistanceTxt>LOYE AND ALDEN MILLER AWARD TO A SENIOR PROFESSIONAL RECOGNIZES LIFETIME ACHIEVEMENT IN ORNITHOLOGICAL RESEARCH</TypeOfAssistanceTxt>
        <RegionTxt>NORTH AMERICA - CANADA AND MEXICO, BUT NOT THE UNITED STATES</RegionTxt>
        <RecipientCnt>1</RecipientCnt>
        <CashGrantAmt>1000</CashGrantAmt>
        <MannerOfCashDisbursementTxt>CHECK</MannerOfCashDisbursementTxt>
      </ForeignIndividualsGrantsGrp>
      <ForeignIndividualsGrantsGrp>
        <TypeOfAssistanceTxt>RESEARCH AWARDS SUPPORTING THE STUDENT AOS MEMBERS BASED ON THE QUALITY OF THEIR RESEARCH AS DESCRIBED IN THEIR APPLICATION.</TypeOfAssistanceTxt>
        <RegionTxt>NORTH AMERICA - CANADA AND MEXICO, BUT NOT THE UNITED STATES</RegionTxt>
        <RecipientCnt>4</RecipientCnt>
        <CashGrantAmt>8294</CashGrantAmt>
        <MannerOfCashDisbursementTxt>CHECK</MannerOfCashDisbursementTxt>
      </ForeignIndividualsGrantsGrp>
      <ForeignIndividualsGrantsGrp>
        <TypeOfAssistanceTxt>HARRY R PAINTON AWARDS ARE AWARDED TO AUTHOR OF AN OUTSTANDING PAPER PUBLISHED IN THE AOS JOURNAL, ORNITHOLOGICAL APPLICATIONS</TypeOfAssistanceTxt>
        <RegionTxt>SOUTH AMERICA</RegionTxt>
        <RecipientCnt>1</RecipientCnt>
        <CashGrantAmt>1500</CashGrantAmt>
        <MannerOfCashDisbursementTxt>CHECK</MannerOfCashDisbursementTxt>
      </ForeignIndividualsGrantsGrp>
      <ForeignIndividualsGrantsGrp>
        <TypeOfAssistanceTxt>RESEARCH AWARDS SUPPORTING THE STUDENT AOS MEMBERS BASED ON THE QUALITY OF THEIR RESEARCH AS DESCRIBED IN THEIR APPLICATION.</TypeOfAssistanceTxt>
        <RegionTxt>SOUTH AMERICA</RegionTxt>
        <RecipientCnt>2</RecipientCnt>
        <CashGrantAmt>4549</CashGrantAmt>
        <MannerOfCashDisbursementTxt>CHECK</MannerOfCashDisbursementTxt>
      </ForeignIndividualsGrantsGrp>
      <ForeignIndividualsGrantsGrp>
        <TypeOfAssistanceTxt>STUDENT TRAVEL GRANTS SUPPORT ANNUAL MEETING ATTENDANCE FOR STUDENT MEMBERS</TypeOfAssistanceTxt>
        <RegionTxt>SOUTH ASIA</RegionTxt>
        <RecipientCnt>1</RecipientCnt>
        <CashGrantAmt>1600</CashGrantAmt>
        <MannerOfCashDisbursementTxt>CHECK</MannerOfCashDisbursementTxt>
      </ForeignIndividualsGrantsGrp>
      <ForeignIndividualsGrantsGrp>
        <TypeOfAssistanceTxt>AOS STUDENT PRESENTATION AWARDS TO STUDENT AOS MEMBERS BASED ON THE QUALITY OF THEIR RESEARCH PRESENTED AT THE ANNUAL MEETING</TypeOfAssistanceTxt>
        <RegionTxt>NORTH AMERICA - CANADA AND MEXICO, BUT NOT THE UNITED STATES</RegionTxt>
        <RecipientCnt>1</RecipientCnt>
        <CashGrantAmt>500</CashGrantAmt>
        <MannerOfCashDisbursementTxt>CHECK</MannerOfCashDisbursementTxt>
      </ForeignIndividualsGrantsGrp>
      <ForeignIndividualsGrantsGrp>
        <TypeOfAssistanceTxt>TRAVEL GRANTS TO SUPPORT MEETING ATTENDANCE BY INDIVIDUALS FROM UNDERREPRESENTED GROUPS OR THOSE WHO ARE FROM, RESIDE OR STUDY IN LATIN AMERICA</TypeOfAssistanceTxt>
        <RegionTxt>NORTH AMERICA - CANADA AND MEXICO, BUT NOT THE UNITED STATES</RegionTxt>
        <RecipientCnt>1</RecipientCnt>
        <CashGrantAmt>2500</CashGrantAmt>
        <MannerOfCashDisbursementTxt>CHECK</MannerOfCashDisbursementTxt>
      </ForeignIndividualsGrantsGrp>
      <ForeignIndividualsGrantsGrp>
        <TypeOfAssistanceTxt>RESEARCH AWARDS SUPPORTING STUDENT AOS MEMBERS BASED ON THE QUALITY OF THE RESEARCH AS DESCRIBED IN THEIR APPLICATION</TypeOfAssistanceTxt>
        <RegionTxt>SOUTH ASIA</RegionTxt>
        <RecipientCnt>1</RecipientCnt>
        <CashGrantAmt>2500</CashGrantAmt>
        <MannerOfCashDisbursementTxt>CHECK</MannerOfCashDisbursementTxt>
      </ForeignIndividualsGrantsGrp>
      <ForeignIndividualsGrantsGrp>
        <TypeOfAssistanceTxt>TRAVEL GRANTS TO SUPPORT MEETING ATTENDANCE BY INDIVIDUALS FROM UNDERREPRESENTED GROUP OR THOSE WHO ARE FROM, RESIDE OR STUDY IN LATIN AMERICA</TypeOfAssistanceTxt>
        <RegionTxt>SOUTH ASIA</RegionTxt>
        <RecipientCnt>1</RecipientCnt>
        <CashGrantAmt>1400</CashGrantAmt>
        <MannerOfCashDisbursementTxt>CHECK</MannerOfCashDisbursementTxt>
      </ForeignIndividualsGrantsGrp>
      <ForeignIndividualsGrantsGrp>
        <TypeOfAssistanceTxt>WILLIAM BREWSTER MEMORIAL AWARD RECOGNIZES THE MOST MERITORIOUS BODY OF WORK ON BIRDS OF THE WESTERN HEMISPHERE PUBLISHED DURING THE PAST TEN YEARS</TypeOfAssistanceTxt>
        <RegionTxt>SOUTH AMERICA</RegionTxt>
        <RecipientCnt>1</RecipientCnt>
        <CashGrantAmt>1000</CashGrantAmt>
        <MannerOfCashDisbursementTxt>CHECK</MannerOfCashDisbursementTxt>
      </ForeignIndividualsGrantsGrp>
      <ForeignIndividualsGrantsGrp>
        <TypeOfAssistanceTxt>TRAVEL GRANTS TO SUPPORT MEETING ATTENDANCE BY INDIVIDUALS FROM UNDERREPRESENTED GROUPS OR THOSE WHO ARE FROM, RESIDE OR STUDY IN LATIN AMERICA</TypeOfAssistanceTxt>
        <RegionTxt>SOUTH AMERICA</RegionTxt>
        <RecipientCnt>5</RecipientCnt>
        <CashGrantAmt>7940</CashGrantAmt>
        <MannerOfCashDisbursementTxt>CHECK</MannerOfCashDisbursementTxt>
      </ForeignIndividualsGrantsGrp>
      <TransferToForeignCorpInd>0</TransferToForeignCorpInd>
      <InterestInForeignTrustInd>0</InterestInForeignTrustInd>
      <ForeignCorpOwnershipInd>0</ForeignCorpOwnershipInd>
      <PassiveForeignInvestmestCoInd>0</PassiveForeignInvestmestCoInd>
      <ForeignPartnershipInd>0</ForeignPartnershipInd>
      <BoycottCountriesInd>0</BoycottCountriesInd>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>PART I, LINE 2:</FormAndLineReferenceDesc>
        <ExplanationTxt>THE AOS MANAGES ITS AWARD COMPETITIONS THROUGH ITS ASSOCIATION MANAGEMENT SYSTEM. COMMITTEES APPOINTED BY THE PRESIDENT OF THE SOCIETY REVIEW APPLICATIONS AND RECOMMEND AWARDS. AOS MAINTAINS A LIST OF INDIVIDUALS WHO APPLIED FOR EACH AWARD, THE AMOUNT OF EACH AWARD, THE SELECTION CRITERIA USED TO DETERMINE WHO RECEIVED THE AWARD, AND THE LIST OF THE GRANTEES. THE LIST OF GRANTEES ARE POSTED ON THE WEBSITE AMERICANORNITHOLOGY.ORG.</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleF>
    <IRS990ScheduleI documentId="RetDoc1041900001">
      <GrantRecordsMaintainedInd>1</GrantRecordsMaintainedInd>
      <RecipientTable>
        <RecipientBusinessName>
          <BusinessNameLine1Txt>CORNELL UNIVERSITY</BusinessNameLine1Txt>
        </RecipientBusinessName>
        <USAddress>
          <AddressLine1Txt>377 PINE TREE RD</AddressLine1Txt>
          <CityNm>ITHACA</CityNm>
          <StateAbbreviationCd>NY</StateAbbreviationCd>
          <ZIPCd>14850</ZIPCd>
        </USAddress>
        <RecipientEIN>100532082</RecipientEIN>
        <CashGrantAmt>15000</CashGrantAmt>
        <NonCashAssistanceAmt>0</NonCashAssistanceAmt>
        <PurposeOfGrantTxt>KESSEL FELLOWSHIP FOR EARLY CAREER SCIENTISTS PROVIDING TWO YEARS OF SUPPORTING FOR THE FULL RANGE OF ORNITHOLOGICAL RESEARCH AS DESCRIBED IN THEIR APPLICATION</PurposeOfGrantTxt>
      </RecipientTable>
      <RecipientTable>
        <RecipientBusinessName>
          <BusinessNameLine1Txt>UNIVERISTY OF CONNECTICUT</BusinessNameLine1Txt>
        </RecipientBusinessName>
        <USAddress>
          <AddressLine1Txt>343 MARNSFIELD RD UNIT 1074</AddressLine1Txt>
          <CityNm>STORRS</CityNm>
          <StateAbbreviationCd>CT</StateAbbreviationCd>
          <ZIPCd>062691074</ZIPCd>
        </USAddress>
        <RecipientEIN>060772160</RecipientEIN>
        <CashGrantAmt>9850</CashGrantAmt>
        <NonCashAssistanceAmt>0</NonCashAssistanceAmt>
        <PurposeOfGrantTxt>RESEARCH AWARDS SUPPORTING STUDENTS AOS MEMBERS BASED ON THE QUALITY OF THE RESEARCH AS DESCRIBED IN THEIR APPLICATION</PurposeOfGrantTxt>
      </RecipientTable>
      <RecipientTable>
        <RecipientBusinessName>
          <BusinessNameLine1Txt>HUMBOLDT STATE UNIVERSITY</BusinessNameLine1Txt>
        </RecipientBusinessName>
        <USAddress>
          <AddressLine1Txt>1 HARPST STREEET SBS 285</AddressLine1Txt>
          <CityNm>ARCATA</CityNm>
          <StateAbbreviationCd>CA</StateAbbreviationCd>
          <ZIPCd>955218299</ZIPCd>
        </USAddress>
        <RecipientEIN>946050071</RecipientEIN>
        <CashGrantAmt>15000</CashGrantAmt>
        <NonCashAssistanceAmt>0</NonCashAssistanceAmt>
        <PurposeOfGrantTxt>KESSEL FELLOWSHIP FOR EARLY CAREER SCIENTISTS PROVIDING TWO YEARS OF SUPPORTING FOR THE FULL RANGE OF ORNITHOLOGICAL RESEARCH AS DESCRIBED IN THEIR APPLICATION.</PurposeOfGrantTxt>
      </RecipientTable>
      <Total501c3OrgCnt>3</Total501c3OrgCnt>
      <GrantsOtherAsstToIndivInUSGrp>
        <GrantTypeTxt>BAROODY STUDENT PRESENTATION AWARD TO STUDENT AOS MEMBER WITH BEST PRESENTATION IN ANY TOPIC IN ORNITHOLOGY</GrantTypeTxt>
        <RecipientCnt>1</RecipientCnt>
        <CashGrantAmt>500</CashGrantAmt>
      </GrantsOtherAsstToIndivInUSGrp>
      <GrantsOtherAsstToIndivInUSGrp>
        <GrantTypeTxt>COUES AWARD TO A SENIOR PROFESSIONAL AWARD HONORING SIGNIFICANT CONTRIBUTION TO ORNITHOLOGY</GrantTypeTxt>
        <RecipientCnt>1</RecipientCnt>
        <CashGrantAmt>500</CashGrantAmt>
      </GrantsOtherAsstToIndivInUSGrp>
      <GrantsOtherAsstToIndivInUSGrp>
        <GrantTypeTxt>FLORENCE MERRIAM BAILEY AWARD RECOGNIZES AN OUTSTANDING ARTICLE PUBLISHED IN THE PRECEEDING TWO YEARS BY AN EARLY CAREER MEMBER IN AN AOS JOURNAL</GrantTypeTxt>
        <RecipientCnt>1</RecipientCnt>
        <CashGrantAmt>1500</CashGrantAmt>
      </GrantsOtherAsstToIndivInUSGrp>
      <GrantsOtherAsstToIndivInUSGrp>
        <GrantTypeTxt>JAMES G COOPER EARLY PROFESSIONAL AWARD RECOGNIZES EARLY CAREER RESERCHERS FOR OUTSTANDING CONTRIBUTIONS TO THE FIELD OF ORNITHOLOGY</GrantTypeTxt>
        <RecipientCnt>1</RecipientCnt>
        <CashGrantAmt>1500</CashGrantAmt>
      </GrantsOtherAsstToIndivInUSGrp>
      <GrantsOtherAsstToIndivInUSGrp>
        <GrantTypeTxt>JOSSELYN VAN TYNE MEMORIAL RESEARCH AWARDS SUPPORT GRADUATE STUDENT AOS MEMBERS IN ALL AREA OF AVIAN BIOLOGY</GrantTypeTxt>
        <RecipientCnt>1</RecipientCnt>
        <CashGrantAmt>1700</CashGrantAmt>
      </GrantsOtherAsstToIndivInUSGrp>
      <GrantsOtherAsstToIndivInUSGrp>
        <GrantTypeTxt>NED K JOHNSON EARLY INVESTIGATOR AWARD RECOGNIZES PROMISING WORK BY A RESEARCH IN ANY FIELD OF ORNITHOLOGY</GrantTypeTxt>
        <RecipientCnt>1</RecipientCnt>
        <CashGrantAmt>1500</CashGrantAmt>
      </GrantsOtherAsstToIndivInUSGrp>
      <GrantsOtherAsstToIndivInUSGrp>
        <GrantTypeTxt>WILLIAM BREWSTER MEMORIAL AWARD RECOGNIZES THE MOST MERITORIOUS BODY OF WORK ON BIRDS OF THE WESTERN HEMISPHERE PUBLISHED DURING THE PAST TEN YEARS</GrantTypeTxt>
        <RecipientCnt>1</RecipientCnt>
        <CashGrantAmt>1000</CashGrantAmt>
      </GrantsOtherAsstToIndivInUSGrp>
      <GrantsOtherAsstToIndivInUSGrp>
        <GrantTypeTxt>MEWALDTKING MEMORIAL RESEARCH AWARDS SUPPORT GRADUATE STUDENT AOS MEMBERS BASED ON THE QUALITY OF THE RESEARCH AS DESCRIBED IN THEIR APPLICATION</GrantTypeTxt>
        <RecipientCnt>1</RecipientCnt>
        <CashGrantAmt>2500</CashGrantAmt>
      </GrantsOtherAsstToIndivInUSGrp>
      <GrantsOtherAsstToIndivInUSGrp>
        <GrantTypeTxt>MARK E HAUBER AWARD TO STUDENT AOS MEMBER WITH BEST PRESENTATION ON AVIAN BEHAVIOR</GrantTypeTxt>
        <RecipientCnt>2</RecipientCnt>
        <CashGrantAmt>1000</CashGrantAmt>
      </GrantsOtherAsstToIndivInUSGrp>
      <GrantsOtherAsstToIndivInUSGrp>
        <GrantTypeTxt>SCHREIBER CONSERVATION AWARD HONOR EXTRAORDINARY SCIENTIFIC CONTRIBUTIONS TO THE CONSERVATION, RESTORATION, OR PRESERVATION OF BIRDS AND/OR THEIR HABITATS BY AN INDIVIDUAL OR SMALL TEAM</GrantTypeTxt>
        <RecipientCnt>2</RecipientCnt>
        <CashGrantAmt>2000</CashGrantAmt>
      </GrantsOtherAsstToIndivInUSGrp>
      <GrantsOtherAsstToIndivInUSGrp>
        <GrantTypeTxt>WERNER AND HILDEGARD HESSE RESEARCH AWARDS SUPPORT GRADUATE STUDENT AOS MEMBERS BASED ON THE QUALITY OF THE RESEARCH AS DESCRIBED IN THEIR APPLICATION</GrantTypeTxt>
        <RecipientCnt>3</RecipientCnt>
        <CashGrantAmt>6470</CashGrantAmt>
      </GrantsOtherAsstToIndivInUSGrp>
      <GrantsOtherAsstToIndivInUSGrp>
        <GrantTypeTxt>ALEXANDER WETMORE MEMORIAL RESEARCH AWARDS SUPPORT GRADUATE STUDENT AOS MEMBERS BASED ON THE QUALITY OF THE RESEARCH AS DESCRIBED IN THEIR APPLICATION</GrantTypeTxt>
        <RecipientCnt>4</RecipientCnt>
        <CashGrantAmt>9107</CashGrantAmt>
      </GrantsOtherAsstToIndivInUSGrp>
      <GrantsOtherAsstToIndivInUSGrp>
        <GrantTypeTxt>CAREGIVER GRANTS ENABLE MEMBER ATTENDANCE AT AOS ANNUAL MEETING BY DEFRAYING DEPENDENT CAREGIVING COSTS</GrantTypeTxt>
        <RecipientCnt>5</RecipientCnt>
        <CashGrantAmt>3775</CashGrantAmt>
      </GrantsOtherAsstToIndivInUSGrp>
      <GrantsOtherAsstToIndivInUSGrp>
        <GrantTypeTxt>AOS STUDENT PRESENTATION AWARDS TO STUDENT AOS MEMBERS BASED ON THE QUALITY OF THEIR RESEARCH PRESENTED AT THE ANNUAL MEETING</GrantTypeTxt>
        <RecipientCnt>6</RecipientCnt>
        <CashGrantAmt>3000</CashGrantAmt>
      </GrantsOtherAsstToIndivInUSGrp>
      <GrantsOtherAsstToIndivInUSGrp>
        <GrantTypeTxt>RESEARCH AWARDS SUPPORTING STUDENT AOS MEMBERS BASED ON THE QUALITY OF THE RESEARCH AS DESCRIBED IN THEIR APPLICATION</GrantTypeTxt>
        <RecipientCnt>9</RecipientCnt>
        <CashGrantAmt>24099</CashGrantAmt>
      </GrantsOtherAsstToIndivInUSGrp>
      <GrantsOtherAsstToIndivInUSGrp>
        <GrantTypeTxt>JENKINSON AND STETTENHEIM SERVICE PROFESSIONAL AWARD HONORING SIGNIFICANT SERVICE TO AOS</GrantTypeTxt>
        <RecipientCnt>11</RecipientCnt>
        <CashGrantAmt>1000</CashGrantAmt>
      </GrantsOtherAsstToIndivInUSGrp>
      <GrantsOtherAsstToIndivInUSGrp>
        <GrantTypeTxt>TRAVEL GRANTS TO SUPPORT MEETING ATTENDANCE BY INDIVIDUALS FROM UNDERREPRESENTED GROUPS OR THOSE WHO ARE FROM, RESIDE OR STUDY IN LATIN AMERICA OR THE CARIBBEAN</GrantTypeTxt>
        <RecipientCnt>11</RecipientCnt>
        <CashGrantAmt>8252</CashGrantAmt>
      </GrantsOtherAsstToIndivInUSGrp>
      <GrantsOtherAsstToIndivInUSGrp>
        <GrantTypeTxt>STUDENT TRAVEL GRANTS SUPPORT ANNUAL MEETING ATTENDANCE FOR STUDENT MEMBERS</GrantTypeTxt>
        <RecipientCnt>127</RecipientCnt>
        <CashGrantAmt>70790</CashGrantAmt>
      </GrantsOtherAsstToIndivInUSGrp>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>PART I, LINE 2:</FormAndLineReferenceDesc>
        <ExplanationTxt>THE AOS MANAGES ITS AWARD COMPETITIONS THROUGH ITS ASSOCIATION MANAGEMENT SYSTEM. COMMITTEES APPOINTED BY THE PRESIDENT OF THE SOCIETY REVIEW APPLICATIONS AND RECOMMEND AWARDS. AOS MAINTAINS A LIST OF INDIVIDUALS WHO APPLIED FOR EACH AWARD, THE AMOUNT OF EACH AWARD, THE SELECTION CRITERIA USED TO DETERMINE WHO RECEIVED THE AWARD, AND THE LIST OF THE GRANTEES. THE LIST OF GRANTEES ARE POSTED ON THE WEBSITE AMERICANORNITHOLOGY.ORG.</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleI>
    <IRS990ScheduleJ documentId="RetDoc1042400001">
      <CompensationCommitteeInd>X</CompensationCommitteeInd>
      <CompensationSurveyInd>X</CompensationSurveyInd>
      <BoardOrCommitteeApprovalInd>X</BoardOrCommitteeApprovalInd>
      <SeverancePaymentInd>0</SeverancePaymentInd>
      <SupplementalNonqualRtrPlanInd>0</SupplementalNonqualRtrPlanInd>
      <EquityBasedCompArrngmInd>0</EquityBasedCompArrngmInd>
      <CompBasedOnRevenueOfFlngOrgInd>0</CompBasedOnRevenueOfFlngOrgInd>
      <CompBsdOnRevRelatedOrgsInd>0</CompBsdOnRevRelatedOrgsInd>
      <CompBsdNetEarnsFlngOrgInd>0</CompBsdNetEarnsFlngOrgInd>
      <CompBsdNetEarnsRltdOrgsInd>0</CompBsdNetEarnsRltdOrgsInd>
      <AnyNonFixedPaymentsInd>0</AnyNonFixedPaymentsInd>
      <InitialContractExceptionInd>0</InitialContractExceptionInd>
      <RltdOrgOfficerTrstKeyEmplGrp>
        <PersonNm>JUDITH SCARL</PersonNm>
        <TitleTxt>EXECUTIVE DIRECTOR</TitleTxt>
        <BaseCompensationFilingOrgAmt>154500</BaseCompensationFilingOrgAmt>
        <CompensationBasedOnRltdOrgsAmt>0</CompensationBasedOnRltdOrgsAmt>
        <BonusFilingOrganizationAmount>7500</BonusFilingOrganizationAmount>
        <BonusRelatedOrganizationsAmt>0</BonusRelatedOrganizationsAmt>
        <OtherCompensationFilingOrgAmt>5700</OtherCompensationFilingOrgAmt>
        <OtherCompensationRltdOrgsAmt>0</OtherCompensationRltdOrgsAmt>
        <DeferredCompensationFlngOrgAmt>5031</DeferredCompensationFlngOrgAmt>
        <DeferredCompRltdOrgsAmt>0</DeferredCompRltdOrgsAmt>
        <NontaxableBenefitsFilingOrgAmt>0</NontaxableBenefitsFilingOrgAmt>
        <NontaxableBenefitsRltdOrgsAmt>0</NontaxableBenefitsRltdOrgsAmt>
        <TotalCompensationFilingOrgAmt>172731</TotalCompensationFilingOrgAmt>
        <TotalCompensationRltdOrgsAmt>0</TotalCompensationRltdOrgsAmt>
        <CompReportPrior990FilingOrgAmt>0</CompReportPrior990FilingOrgAmt>
        <CompReportPrior990RltdOrgsAmt>0</CompReportPrior990RltdOrgsAmt>
      </RltdOrgOfficerTrstKeyEmplGrp>
    </IRS990ScheduleJ>
    <IRS990ScheduleL documentId="RetDoc1042800001">
      <GrntAsstBnftInterestedPrsnGrp>
        <PersonNm>JACOB DRUCKER</PersonNm>
        <RelationshipWithOrgTxt>DIRECTOR</RelationshipWithOrgTxt>
        <CashGrantAmt>2500</CashGrantAmt>
        <TypeOfAssistanceTxt>GRANT</TypeOfAssistanceTxt>
        <AssistancePurposeTxt>RESEARCH GRANT</AssistancePurposeTxt>
      </GrntAsstBnftInterestedPrsnGrp>
      <BusTrInvolveInterestedPrsnGrp>
        <NameOfInterested>
          <PersonNm>CHRISTINE SCHMIDT</PersonNm>
        </NameOfInterested>
        <RelationshipDescriptionTxt>FAMILY MEMBER OF COLLEEN HANDEL, PRESIDENT</RelationshipDescriptionTxt>
        <TransactionAmt>76985</TransactionAmt>
        <TransactionDesc>EMPLOYMENT</TransactionDesc>
        <SharingOfRevenuesInd>0</SharingOfRevenuesInd>
      </BusTrInvolveInterestedPrsnGrp>
    </IRS990ScheduleL>
    <IRS990ScheduleO documentId="RetDoc1044400001">
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION A, LINE 6</FormAndLineReferenceDesc>
        <ExplanationTxt>THE AOS HAS MEMBERS WHO PAY ANNUAL DUES.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION A, LINE 7A</FormAndLineReferenceDesc>
        <ExplanationTxt>THE AOS MEMBERS ELECT A COUNCIL AND OFFICERS; COUNCIL MEETS SIX TO SEVEN TIMES A YEAR TO ADDRESS GOVERNANCE ISSUES.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION A, LINE 7B</FormAndLineReferenceDesc>
        <ExplanationTxt>FELLOWS, A DESIGNATED MEMBER CLASS, HAVE THE ABILITY TO VOTE AND TO APPROVE CHANGES.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION B, LINE 11B</FormAndLineReferenceDesc>
        <ExplanationTxt>THE AOS AUDIT COMMITTEE REVIEWS THE 990 PRIOR TO SUBMISSION. THE 990 IS DISTRIBUTED TO AOS COUNCIL AND IS ALSO MADE AVAILABLE THROUGH THE SOCIETY WEBSITE, AMERICANORNITHOLOGY.ORG, AS WELL AS UPON REQUEST.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION B, LINE 12C</FormAndLineReferenceDesc>
        <ExplanationTxt>AOS OFFICERS, COUNCIL MEMBERS, AND EMPLOYEES ANNUALLY SUBMIT A CONFLICT OF INTEREST DISCLOSURE STATEMENT AS A REQUIREMENT FOR THEIR SERVICE TO, OR EMPLOYMENT WITH, THE SOCIETY. POTENTIAL CONFLICTS ARE RECORDED AND MONITORED BY THE EXECUTIVE DIRECTOR IN CONSULTATION WITH THE SECRETARY OF THE SOCIETY.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION B, LINE 15A</FormAndLineReferenceDesc>
        <ExplanationTxt>THE EXECUTIVE COMPENSATION POLICY AUTHORIZES THE EXECUTIVE COMMITTEE OF THE COUNCIL TO CONDUCT THE EXECUTIVE DIRECTOR'S ANNUAL APPRAISAL, AND TO RECOMMEND TO COUNCIL EXECUTIVE COMPENSATION AND BENEFITS. THE POLICY REQUIRES A COMPENSATION STUDY TO BE PERFORMED PERIODICALLY; A STUDY CONDUCTED IN FY2020 WAS USED TO INFORM COMPENSATION FOR 2023.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION C, LINE 19</FormAndLineReferenceDesc>
        <ExplanationTxt>GOVERNING DOCUMENTS, POLICIES AND FINANCIAL STATEMENTS ARE AVAILABLE UPON REQUEST AND ON THE WEBSITE.</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleO>
  </ReturnData>
</Return>