Duck Population Responses STKYEnn-IJMENTSCOLLECTION NOV181992 MONTANASTATELIBRARY HELEN15A),5MOE.?iCtThANAAVE5.9620 cMoqttuip.<Departn\ei}tof MontanaStateUniversity DUCKPOPULATIONRESPONSESTOWATERDEVELOPMENT INNORTHCENTRALMONTANA by ShawnRoyBayless Athesissubmittedinpartialfulfillment oftherequirementsforthedegree of MasterofScience in FishandWildlifeManagement MONTANASTATEUNIVERSITY Bozeman,Montana June,1992 ii APPROVAL ofathesissubmittedby ShawnRoyBayless Thisthesishasbeenreadbyeachmemberofthethesiscommitteeandhasbeen foundtobesatisfactoryregardingcontent,Englishusage,format,citations,bibliographicstyle, andconsistency,andisreadyforsubmissiontotheCollegeofGraduateStudies. Date Chairperson,GraduateCommittee ApprovedfortheMajorDepartment Date Head,MajorDepartment ApprovedfortheCollegeofGraduateStudies Date GraduateDean iii STATEMENTOFPERMISSIONTOUSE Inpresentingthisthesisinpartialfulfillmentoftherequirementsforamaster'sdegree atMontanaStateUniversity,IagreethattheLibraryshallmakeitavailabletoborrowersunder therulesoftheLibrary.Briefquotationsfromthisthesisareallowablewithoutspecial permission,providedthataccurateacknowledgementofsourceismade. Permissionforextensivequotationfromorreproductionofthisthesismaybegranted bymymajorprofessor,orinhisabsence,bytheDeanofLibrarieswhen,intheopinionof either,theproposeduseofthematerialisforscholarlypurposes.Anycopyingoruseofthe materialinthisthesisforfinancialgainshallnotbeallowedwithoutmywrittenpermission. Signature Date iv VITA ShawnRoyBaylesswasbornNovember2,1964inHelena,MontanatoSteveR.and JudithL.Bayless.AftergraduatingfromHelenaHighSchool,heenlistedintheUnitedStates Armyforthreeyears.HethenenrolledinFishandWildlifeManagementatMontanaState University,wherehereceivedhisBachelorofSciencedegreeinJune,1990.Following graduationthatyearhebeganfieldstudiesinthegraduateprograminFishandWildlife ManagementatMontanaStateUniversity.HeismarriedtoPatriciaLynnBaylessandhastwo daughters,LyndsiRaeandJenevieveLee.