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  • All fields: Measuring
(149 results)



Display: 20

    • East Amatuli Island, Barrens

    • AMNWR; Alaska Maritime National Wildlife Refuge; Gulf of Alaska Unit; Biology; Islands; Research; Coastal environments; Scenics; Birds; Black-legged Kittiwakes
    • Counting and measuring Black-legged Kittiwake chicks on the cliffs of E. Amatuli Island in the Barrens off the tip of the Kenai Peninsula is part of the many tasks completed every summer by biologists and technicians from Alaska Maritime National...
    • Habitat suitability index models: diamondback terrapin (nesting)--Atlantic Coast

    • Aquatic animals; Aquatic environments; Reptiles; Scientific personnel (USFWS); Habitat conservation
    • The habitat suitability index (HSI) model in this report on the diamond-back terrapin is intended for use in the U.S. Fish and Wildlife Service's (1980) habitat evaluation procedures for impact assessment and habitat management. The model was...
    • American White Pelican

    • Aquatic birds; Species of concern;
    • The American white pelican is one of the largest birds in North America, measuring 6 feet from bill to tail. White pelicans weigh up to 20 pounds and have a wingspan of 8 to 9 and a half feet long.
    • American White Pelicans in flight

    • Aquatic birds; Species of concern;
    • The American white pelican is one of the largest birds in North America, measuring 6 feet from bill to tail. White pelicans weigh up
    • Measurinig forearm

    • bats; Work of the Service; Biologists (USFWS); Mammals;
    • Measuring the forearm of a Big brown bat.
    • Ave Thayer oral history transcript

    • Biography; Employees (USFWS); History; Hunting; Law enforcement; Trapping; Surveying; Aircraft; Aviation; Mammals; Management; Habitat conservation; Rivers and streams; Wilderness;
    • Ave Thayer oral history interview as conducted by Mark Madison. As well as working at Arctic National Wildlife Refuge and Kenai Moose National Wildlife Refuge, Mr. Thayer also worked in Anchorage under the Alaska Game Commission, and in McGrath,...
    • Measuring the wingspan of an Indigo Bunting

    • Biologists (USFWS); Bird banding; Birds; Birdwatching; Work of the Service; Training; Connecting people with nature;
    • This picture shows a U.S. Fish and Wildlife Service employee holding a Indigo Bunting during a bird banding exercise at the Basic Bird Biology class.
    • 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...
    • Measuring a Tundra Swan

    • Biology; science; research; Tundra swans; swans; swan; Alaska; Yukon Delta NWR; avian influenza; avian Influenza sampling; AI; Birds flu; Donna Dewhurst Collection
    • USGS Biologist Dan Rizzolo measures the bill length on a tundra swan, prior to banding and avian influenza sampling.
    • Bluethroat Male

    • Birds; Bluethroats; Yukon Delta National Wildlife Refuge; Alaska
    • The Bluethroat is one of the smallest members of the Thrush family measuring 5.5 (14 cm) inches in length. The colorful blue throat pattern distinguishes this breeding male from other species. Nests are found on the tundra in thickets near water....
    • Bluethroat Male

    • Birds; Bluethroats; Yukon Delta National Wildlife Refuge; Alaska
    • The Bluethroat is one of the smallest members of the Thrush family measuring 5.5 (14 cm) inches in length. The colorful blue throat pattern distinguishes this breeding male from other species. Nests are found on the tundra in thickets near water....
    • Bluethroat Male

    • Birds; Bluethroats; Yukon Delta National Wildlife Refuge; Alaska
    • The Bluethroat is one of the smallest members of the Thrush family measuring 5.5 (14 cm) inches in length. The colorful blue throat pattern distinguishes this breeding male from other species. Nests are found on the tundra in thickets near water....
    • Bluethroat Male

    • Birds; Bluethroats; Yukon Delta National Wildlife Refuge; Alaska
    • The Bluethroat is one of the smallest members of the Thrush family measuring 5.5 (14 cm) inches in length. The colorful blue throat pattern distinguishes this breeding male from other species. Nests are found on the tundra in thickets near water....
    • Red-cockaded woodpecker

    • Birds; Endangered species;
    • This is an in-depth description of the red-cockaded woodpecker. It covers a multitude of topics, including history, location, habitat, environmental niche, conservation efforts and more.
    • Bluethroat male

    • Birds; Perching birds;
    • The Bluethroat is one of the smallest members of the Thrush family measuring 5.5 (14 cm) inches in length. The colorful blue throat pattern distinguishes this breeding male from other species. Nests are found on the tundra in thickets near water.

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