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  • All fields: platyrhynchos)
(55 results)



Display: 20

    • Waterfowl management handbook

    • Wildlife management; Waterfowl; Work of the Service; Wildlife refuges; Wildlife impacts;
    • Waterfowl nutritional needs during the annual cycle and the nutritional values of natural foods and crops are discussed.
    • Mallards

    • Birds; Aquatic birds; Wildlife refuges;
    • Female mallard ducks at John Heinz National Wildlife Refuge, PA.
    • Mallards

    • Aquatic birds;
    • Two Mallard ducks at John Heinz National Wildlife Refuge, PA.
    • Mallards

    • Birds; Wildlife refuges;
    • Mallard ducks in flight at John Heinz National Wildlife Refuge, Philadelphia, PA.
    • Mallard female

    • Birds; Waterfowl;
    • Mallard female. Birds; Waterfowl; Yukon Delta National Wildlife Refuge; YUDE; Alaska
    • Mallard ducks

    • Waterfowl; Birds;
    • Two drakes and one hen. Waterfowl; Birds; animals; wildlife; Wetlands
    • Mallard drake

    • Waterfowl; Migratory birds;
    • Mallard drake landing in the water.
    • Mallard drake

    • Birds; Waterfowl;
    • This image was taken at Westchester Lagoon, Anchorage, Alaska.
    • Measuring Mallard eggs

    • Pollutants;Waterfowl;
    • Fish and Wildlife Service worker measuring mallard eggs for study. Vertical.
    • American Waterfowl B-Roll

    • videography; U.S. Fish and Wildlife Service; waterfowl; birds
    • HD B-Roll Stock Footage. Produced by the National Conservation Training Center (NCTC) videographers. Click on "Text" tab above for additional description on video.
    • Lead hazards to fish, wildlife, and invertebrates: a synoptic reivew

    • Biologists (USFWS); Water; Fishes; Pollutants;
    • Lead (Pb) and its compounds have been known to man for about 7,000 years, and Pb poisoning has been recognized for at least 2,500 years. All credible evidence indicates that Pb is neither essential nor beneficial to living organisms, and that all...
    • Mallard duck banding

    • Wildlife refuges; Employees (USFWS); Volunteers; Bird banding; Birds; Environmental education; Equipment; Statistics; Training;
    • Edwin B. Forsythe interns mallard duck banding in Glouchester County, NJ.
    • Mallard banding

    • Wildlife refuges; Employees (USFWS); Volunteers; Bird banding; Birds; Environmental education; Equipment; Work of the Service; Statistics; Training;
    • Edwin B. Forsythe intern mallard duck banding in Glouchester County, NJ.
    • Mallard hen

    • Birds; Shorebirds; Waterfowl;
    • A mallard hen is pictured swimming in water.
    • Mallard

    • Birds; Shorebirds; Waterfowl;
    • A close up shot of a mallard.
    • Mallard

    • Birds; Shorebirds; Waterfowl;
    • A mallard looks back as it stands on a log.
    • Mallard hen

    • Aquatic birds; Birds; Wetlands; Wildlife refuges; Wading birds;
    • Mallard hen at the Kenai National Wildlife Refuge.

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