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  • All fields: population
(1043 results)



Display: 20

    • Eastern Dakotas Survey Area

    • Ground Survey; Waterfowl Population Survey; Waterfowl Survey; Wildlife management; Monitoring; Observation; Sampling; Survey
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    • Safe Harbor Agreements

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    • 7 Environmental Defense, a nonprofit organization, was the key in reaching out to Long and provided funding for biologists to conduct population surveys for the toad on his property. Long is helping Environmental Defense and the Service promote...
    • This fish is trouble!

    • Adults; Aquatic environments; Biologists (USFWS); Boating; Boats; Ecosystem recovery; Emblems; Employees (USFWS); Environmental quality; Fishes; Fishing; Habitat conservation; Habitat fragmentation; Habitat restoration; Management; Personnel;...
    • A Big Muddy National Wildlife Refuge employee holds an Asian carp, (Invasive species), for the camera.
    • Pinyon Jay

    • Birds; Perching birds; Wildlife refuges;
    • A close-up view of a Pinyon Jay perched on a branch in the Deshutes National Forest. According to the International Union for Conservation of Nature and Natural Resources' Red List the status of the Pinyon Jay is vulnerable with a decreasing...
    • Whooping Crane

    • Birds; Endangered species;
    • A close-up view of a Whooping Crane photographed at the International Crane Foundation located in Barbaboo, Wisconsin. The Whooping Crane is an endangered species of which an estimated population of 383 continue to exist in the wild. The Whooping...
    • Tricolored Blackbird

    • Birds; Perching birds; Wildlife refuges; Endangered species;
    • A close-up view of the Tricolored Blackbird photographed in the Lower Klamath National Wildlife Refuge located in California. According to the International Union for Conservation of Nature and Natural Resources the status of the Tricolored...
    • Western Snowy Plover Female on Eggs in Nest

    • Birds; Shorebirds; Threatened species; Coastal environments;
    • A female western snowy plover sits on her nest. The Pacific coast population of western snowy plovers breeds on coastal beaches from southern Washington to southern Baja California, Mexico. Plovers lay their eggs in shallow depressions in sandy or...
    • Gray wolf release

    • Endangered species; Mammals; Monitoring; Wildlife management;
    • A gray wolf fitted with a radio collar is released into the wild. The gray wolf or Canis lupus, often known simply as the wolf, is the largest extant wild member of the Canidae family. Though once abundant over much of Eurasia, North Africa and...
    • Male Short-tailed Albatross and Chick

    • Birds; Migratory birds; Endangered species; Islands; Wildlife refuges;
    • A male short-tailed albatross protects his chick. As of 2010, the short-tailed albatross population is estimated to be 1,200 birds. Of these, the total number of breeding age birds is thought to be approximately 600 birds.
    • Explore the world with shorebirds

    • Birds; Shorebirds;
    • A multidisciplinary education guide for grades 2-12 (with sections on "How to Adapt" for Preschool - 1st grade, home schools, youth groups, and nature centers)
    • Short-tailed Albatross Pair-bonding Dance

    • Birds; Migratory birds; Endangered species; Islands; Wildlife refuges;
    • A pair of short-tailed albatrosses dance together on Midway Atoll National Wildlife Refuge. This pair later mated and hatched a chick in the 2010/2011 breeding season. As of 2010, the short-tailed albatross population is estimated to be 1,200...
    • Easy and safe capture!

    • Employees (USFWS); Endangered species; Experimental Population, Non-Essential; Personnel; Resource management; Wildlife management; Wildlife refuges; Work of the Service;
    • A Red Wolf leaps forward, while biologists capture it to check on it's health and well being. A regular practice at the Alligator National Wildlife Refuge.
    • Walking red wolf

    • Employees (USFWS); Endangered species; Experimental Population, Non-Essential; Personnel; Resource management; Wildlife management; Wildlife refuges; Work of the Service;
    • A red wolf strolls at the Alligator River National Wildlife Refuge.
    • Whooping Crane

    • Birds; Endangered species;
    • A Whooping Crane photographed at the International Crane Foundation located in Barbaboo, Wisconsin. The Whooping Crane is an endangered species of which an estimated population of 383 continue to exist in the wild. The Whooping Crane occurs only in...

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