Waterfowl population status 1996
David F. Caithamer, James A. Dubovsky, U.S. Fish and Wildlife Service. Office of Migratory Bird Management
U.S. Fish and Wildlife Service, 1997 - Bird populations - 39 pages
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above-average production Akimiski Island Alaska Alberta American wigeon Atlantic Flyway based on satellite birds blue-winged teal brant breeding pairs breeding population estimates breeding range broods California Canada geese central coast coastal confidence intervals Coverage 100 December surveys early July Early May Early Eastern Dakotas eastern survey area estimates and 95 fall flight Field biologists flooding gadwall geese nest geese were counted goose populations green-winged teal habitat conditions Hudson Bay increased indicated June and early last year's long-term average Manitoba Mexico million Mississippi Flyway Montana northcentral U.S. northeastern U.S. northern pintails northern shovelers Northwest Territories number of breeding number of ponds Pacific phenology ponds in July population nests Population of Canada portions Prairie Canada precipitation predicted Queen Maud Gulf record-high levels recruitment region resulted Saskatchewan satellite imagery snow geese species spring population Surveys conducted temperatures traditional survey area tundra swans Ungava Peninsula vegetation water levels waterfowl western wetland conditions Yukon-Kuskokwim Delta