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  • All fields: natural-
(1291 results)



Display: 20

    • Petroglyphs

    • Arizona;Glen Canyon;Natural areas;Restoration ecology
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    • California condor (Gymnogyps californianus) recovery plan. Third revision.

    • Endangered and/or threatened; Birds; Birds of prey; Captive breeding; Reintroduction; Raptors;
    • 1976, (41 FR 187). Long recognized as a vanishing species (Cooper 1890, Koford 1953, Wilbur 1978), the California condor remains one ofthe world’s rarest and most imperiled vertebrate species. Despite intensive conservation...
    • Evermann's  Rock Ptarmigan capture attempt

    • Work of the Service; Wildlife refuges; Birds
    • 2005 The Evermann’s Rock Ptarmigan project is helping to restore natural biodiversity in the Aleutians. Fourteen subspecies of rock ptarmigan are found in North America with seven of the fourteen subspecies occurring in the Aleutians, and six...
    • Evermann's Ptarmigan egg

    • ALASKA MARITIME NATIONAL WILDLIFE REFUGE; AMNWR; Birds; birding; ; Aleutian Islands; Aleutians; habitat; Islands; Coastal environments; grouse; ptarmigan; restoration; biodiversity; bioprojects; Near Islands; work of the refuge
    • 2005 The Evermann’s Rock Ptarmigan project is helping to restore natural biodiversity in the Aleutians. Fourteen subspecies of rock ptarmigan are found in North America with seven of the fourteen subspecies occurring in the Aleutians, and six...
    • Evermann's  Rock Ptarmigan

    • ALASKA MARITIME NATIONAL WILDLIFE REFUGE; AMNWR; Birds; birding; Aleutian Islands; Aleutians; habitat; Islands; Coastal environments; grouse; ptarmigan; restoration; biodiversity; bioprojects; Near Islands; work of the refuge
    • 2005 The Evermann’s Rock Ptarmigan project is helping to restore natural biodiversity in the Aleutians. Fourteen subspecies of rock ptarmigan are found in North America with seven of the fourteen subspecies occurring in the Aleutians, and six of...
    • Evermann's Ptarmigan capture

    • Work of the Service; Wildlife refuges;Birds; Game birds
    • 2005 The Evermann’s Rock Ptarmigan project is helping to restore natural biodiversity in the Aleutians. Fourteen subspecies of rock ptarmigan are found in North America with seven of the fourteen subspecies occurring in the Aleutians, and six of...
    • Evermann's Rock Ptarmigan, Attu

    • Work of the Service; Wildlife refuges; Birds
    • 2005 The Evermann’s Rock Ptarmigan project is helping to restore natural biodiversity in the Aleutians. Fourteen subspecies of rock ptarmigan are found in North America with seven of the fourteen subspecies occurring in the Aleutians, and six of...
    • Evermann's Rock Ptarmigan, Attu

    • Work of the Service; Wildlife refuges; Birds
    • 2005 The Evermann’s Rock Ptarmigan project is helping to restore natural biodiversity in the Aleutians. Fourteen subspecies of rock ptarmigan are found in North America with seven of the fourteen subspecies occurring in the Aleutians, and six of...
    • Evermann's Rock Ptarmigan, Attu

    • Work of the Service; Wildlife refuges; Birds
    • 2005 The Evermann’s Rock Ptarmigan project is helping to restore natural biodiversity in the Aleutians. Fourteen subspecies of rock ptarmigan are found in North America with seven of the fourteen subspecies occurring in the Aleutians, and six of...
    • Evermann's  Rock Ptarmigan3

    • Work of the Service; Wildlife refuges; Birds
    • 2005, Ptarmigan on WWII relics The Evermann’s Rock Ptarmigan project is helping to restore natural biodiversity in the Aleutians. Fourteen subspecies of rock ptarmigan are found in North America with seven of the fourteen subspecies occurring in...

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