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  • All fields: blue
(204 results)



Display: 20

    • Great Blue Heron

    • Birds; Wading birds; Wildlife refuges;
    • Great blue heron wading in water at E.B. Forsythe National Wildlife Refuge.
    • Blue and yellow macaws

    • Birds; Tropical environments
    • Two blue and yellow macaws perched on a tree branch side by side. Tobago; W.I. Psittaciformes. Cousins in the parrot family
    • Juvenile Little blue heron

    • Species of concern; Birds; Wildlife refuges;
    • Young little blue heron at John Heinz National Wildlife Refuge, Philadelphia, PA.
    • 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.
    • Great Blue Heron with Big Fish

    • Birds; Wading birds; Wildlife refuges; Fishes;
    • Great blue heron holding large fish in its beak at John Heinz National Wildlife Refuge, Philadelphia, PA.
    • Blue Jay

    • Birds; Wildlife refuges; Perching birds
    • Blue jay at John Heinz National Wildlife Refuge, Philadelphia, PA.
    • Mt. Charleston Blue Butterfly

    • Insects;
    • A Mt. Charleston Blue Butterfly rests on a rock. The Mt. Charleston blue butterfly is a distinctive subspecies of the wider ranging Shasta blue butterfly, a member of the Lycaenidae family. The subspecies is known only to occur at high elevations...
    • Karner blue butterfly on hawkweed

    • Aquatic environments; Fishes; Fisheries management; Endangered species;
    • The Karner blue butterfly, an endangered species, is a small butterfly that lives in oak savannas and pine barren ecosystems from eastern Minnesota and eastward to the Atlantic seaboard.
    • Great Blue Heron

    • Birds; Migratory birds;
    • Great blue heron frequently visits the edge of inland ponds, ocean shores and it is the largest heron in North America
    • juvenile Great blue heron

    • Birds; History; Historic sites; Migratory birds; Marine birds; Birds; Wildlife refuges;
    • A young Great blue heron photograph taken by Finley and Bohlman at Malheur 1908. A white form of the Great Blue Heron exists known as the "great white heron," it is found in shallow marine waters along the coast of southern Florida, the Yucatan...
    • Fender's Blue Butterfly

    • Endangered species; Insects; Wildlife refuges;
    • Endangered Fender's Blue Butterfly photographed at Baskett Slough National Wildlife Refuge.
    • Endangered Fender's Blue Butterfly

    • Insects; Endangered species; Wildlife refuges;
    • Fender's blue butterfly is an endangered butterfly species. Baskett Slough National Wildlife Refuge has the largest known remaining population.
    • Great Blue Heron

    • Wading birds; Wildlife refuges;
    • A great blue heron wades in still waters.

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