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(66 results)



Display: 20

    • A guide to nestling development and aging in altricial passerines

    • Birds; Perching birds; Research; Statistics;
    • This is a guide to altricial passerines. It has an explanation of variables used for aging birds and an explanation of methodology employed, and provides information obtained while recording the early aging of the Dusky Flycatcher, the Carolina...
    • American alligator: alligator mississippiensis

    • Endangered and/or threatened; Reptiles;
    • This is a wildlife fact sheet describing the American alligator. It explains some biological information on the animal, and describes briefly its move from endangered status to full recovery.
    • 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
    • Annotated bibliography of economic literature on wetlands

    • Scientific personnel (USFWS); Wetlands; Interpretation; Resource management; Policies;
    • This report attempts to help natural resource economics, wetlands scientists, resource managers, government officials, and sportsmen better understand controversies surrounding wetlands allocations by surveying some of recent economic literature on...
    • Brown Noddy nesting

    • Birds; Coastal environments; Islands;
    • Brown Noddy nesting. Brown noddies are medium sized, dark, brown birds. Adults have ashy-white forehead and crown sharply demarcated from black lores, merging evenly into gray nape. They have a long, narrow, wedged-shaped tail and legs and feet are...
    • Brown Noddy on Laysan beach

    • Adults; Birds; Coastal environments; Islands; Research; Scientific personnel (USFWS); Bird banding; Endangered and/or Threatened species;
    • Flock of Brown Noddy on Laysan beach with ship in background. Brown Noddies are medium sized, dark, brown birds. Adults have ashy-white forehead and crown sharply demarcated from black lores, merging evenly into gray nape. They have a long, narrow,...
    • Brown Noddy on Laysan Island

    • Birds; Marine birds; Tropical environments; Islands;
    • Brown noddies are medium sized, dark, brown birds. Adults have ashy-white forehead and crown sharply demarcated from black lores, merging evenly into gray nape. They have a long, narrow, wedged-shaped tail and legs and feet are brown. Their bill is...
    • Brown Noddy on Laysan Island

    • Birds; Marine birds; Tropical environments;
    • Brown noddies are medium sized, dark, brown birds. Adults have ashy-white forehead and crown sharply demarcated from black lores, merging evenly into gray nape. They have a long, narrow, wedged-shaped tail and legs and feet are brown. Their bill is...
    • Brown Noddy on Nihoa Island

    • Birds; Islands; Marine birds;
    • Brown noddies are medium sized, dark, brown birds. Adults have ashy-white forehead and crown sharply demarcated from black lores, merging evenly into gray nape. They have a long, narrow, wedged-shaped tail and legs and feet are brown. Their bill is...
    • Brown Noddy on Nihoa Island

    • Birds; Marine birds; Islands; Tropical environments;
    • Brown noddies are medium sized, dark, brown birds. Adults have ashy-white forehead and crown sharply demarcated from black lores, merging evenly into gray nape. They have a long, narrow, wedged-shaped tail and legs and feet are brown. Their bill is...
    • Brown Noddy perched on a piece of wood

    • Adults; Birds; Coastal environments; Islands; Research; Scientific personnel (USFWS); Bird banding; Endangered and/or Threatened species;
    • Brown Noddy perched on a piece of wood. Brown noddies are medium sized, dark, brown birds. Adults have ashy-white forehead and crown sharply demarcated from black lores, merging evenly into gray nape. They have a long, narrow, wedged-shaped tail...
    • Bull trout: salvelinus confluentus

    • Fishes; Freshwater fishes; Threatened species;
    • This fact sheet describes the bull trout. Differences between bull trout and other salmonids, particularly Dolly Varden are explained. It also briefly describes the fish's breeding and feeding habits, the water conditions it prefers, and the...
    • 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...
    • Caribou: rangifer tarandus caribou

    • Endangered and/or threatened; Mammals;
    • Note this is a 1998 wildlife fact sheet that may be dated regarding threatened and endangered status. The fact sheet gives a physical description of the animal, as well its breeding habits and range. It briefly explains the status of caribou...
    • Channel bass

    • Art; Fishes;
    • Channel bass or red drum usually occur in great supply along the coast from New York to Florida and Florida to Texas. Average large channel bass weigh between 30 and 40 pounds but some have been found to weigh up to 75 pounds.

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