Ecology of bald eagles wintering near a waterfowl concentration
U.S. Dept. of the Interior, Fish and Wildlife Service, 1982 - Nature - 12 pages
Bald eagles (Haliaeetus leucocephalus) associate with wintering waterfowl concentrations throughout the United States, but little detailed information is available on eagle-waterfowl relations. This report concerns the ecology of bald eagles wintering in the vicinity of Swan Lake National Wildlife Referenc in north-central Missouri and, more specifically, examines the association of the eagles with waterfowl during the winters of 1975-76, 1976-77, and 1977-78.
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19 December adults Age ratio patterns birds Branta canadensis Canada geese carcass counts carcasses were seen cast pellets December Department of Conservation eagle numbers eagle population eagles fed eagles wintering Fish and Wildlife fish carcasses fish kill food availability Fountain Grove Wildlife fowl Grand River Green-winged teal Griffin Grove Wildlife Management habitat immature eagles January Lake National Wildlife large numbers late February M.S. Thesis mallards mammals Mississippi Flyway Missouri Department National Wildlife Refuge night roosts numbers increased numbers of eagles numbers of immature numbers of waterfowl Pershing State Park Prairie Pothole Region prey refuge impoundments San Juan Island snow geese Snow goose species spring thaw Steenhof study area Swan Lake National Swan Lake NWR Swan Lake Zone transects U.S. Fish University of Missouri waterfowl and fish waterfowl carcasses waterfowl concentrations Waterfowl Status Report Wildl Wildlife Management Area Wildlife Service Wilson Bull winter kills wintering bald eagles