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  • All fields: JOHN HEINZ NATIONAL WILDLIFE REFUGE AT TINICUM
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Display: 20

    • Bullfrog

    • Bullfrog
    • Amphibians; Wildlife refuges;
    • Bullfrog at John Heinz National Wildlife Refuge, Philadelphia, PA.
    • Aily Zirkle oral history transcript

    • Aily Zirkle oral history transcript
    • Biography; Birds; Employees (USFWS); Biological control; Education; Environmental quality; Environmental education; Winter sports; Wildlife viewing; Wildlife refuges; Villages; Migratory birds; Surveying; Migration;
    • Aily Zirkle oral history interview as conducted via radio interview.
    • Osprey

    • Osprey
    • Birds of prey; Wildlife refuges;
    • Osprey at John Heniz National Wildlife Refuge, Philadelphia, PA.
    • Bald Eagle

    • Bald Eagle
    • Birds of prey; Wildlife refuges;
    • Bald eagle at John Heinz National Wildlife Refuge, Philadelphia, PA.
    • Bald Eagle with Fish

    • Bald Eagle with Fish
    • Birds of prey; Wildlife refuges;
    • Bald eagle with fish in its talons at John Heinz National Wildlife Refuge, Philadelphia, PA.
    • Red-Tailed Hawk

    • Red-Tailed Hawk
    • Birds of prey; Wildlife refuges;
    • Red-tailed hawk at John Heinz National Wildlife Refuge, Philadelphia, PA.
    • Mallards

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

    • Bald Eagle
    • Birds; Birds of prey; Wildlife refuges;
    • Bald eagle with young at John Heinz National Wildlife Refuge, Philadelphia, PA.
    • Ospreys

    • Ospreys
    • Birds; Birds of prey; Wildlife refuges;
    • Two ospreys at John Heinz National Wildlife Refuge, PA.
    • Students Birdwatching

    • Students Birdwatching
    • Birds; Environmental education; Youth; Wildlife refuges;
    • Philadelphia school students take part in an educational birdwalk at Tinicum marsh, John Heinz National Wildlife Refuge, PA.
    • Students Birdwatching

    • Students Birdwatching
    • Birds; Environmental education; Youth; Wildlife refuges;
    • Philadelphia school students take part in an educational birdwalk on Tinicum marsh at John Heinz National Wildlife Refuge, PA.
    • Bird signage

    • Bird signage
    • Birds; Signs; Wildlife refuges;
    • A picture of bird signage at John Heinz National Wildlife Refuge at Tinicum.
    • Great Blue Heron

    • Great Blue Heron
    • Birds; Species of concern; Wildlife refuges; Fishes;
    • Great blue heron with fish in its beak at John Heinz National Wildlife Refuge, Philadelphia, PA.
    • Pine Warbler

    • Pine Warbler
    • Birds; Trees; Wildlife refuges;
    • Pine warbler on an evergreen branch at John Heinz National Wildlife Refuge, Philadelphia, PA.

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