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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...
    • Arroyo Toad

    • Endangered species; Amphibians;
    • Arroyo Toad in hands to demonstrate size. This small, buff colored toad has a soft, high whistled trill that is often mistaken for the call of an insect. It was listed as endangered in 1994.
    • Bar-Tailed Godwit on Tundra

    • Birds; Migratory birds;Shorebirds
    • Bar-tailed Godwits are large wading birds at about 37 to 45 cm. The Bar-tailed Godwit is a mottled brown in the upper body and a lighter buff below. It has a white underwing, and a long, slightly upturned bill. As the name suggests, the white tail...
    • Black-Tailed Deer (Doe)

    • Endangered species;
    • White-tailed deer are generally distinguished from mule or black-tailed deer by their longer tail that is brown rather than black on the dorsal surface, a smaller metatarsal gland, and, in adult males, antlers with prongs arising from a single main...
    • Black-tailed Jackrabbit

    • Mammals;
    • Jackrabbit sits alert waiting to flee from harm. The Black-tailed Jackrabbit is 18 to 25 inches long and is colored buff peppered with black above, and white below. The tail has a black stripe above. The ears are long and brown with black tips.The...
    • Black-tailed Jackrabbit

    • Mammals;
    • Jackrabbit sits alert waiting to flee from harm. The Black-tailed Jackrabbit is 18 to 25 inches long and is colored buff peppered with black above, and white below. The tail has a black stripe above. The ears are long and brown with black tips.The...
    • Black-tailed Jackrabbit

    • Mammals;
    • Jackrabbit sits alert waiting to flee from harm. The Black-tailed Jackrabbit is 18 to 25 inches long and is colored buff peppered with black above, and white below. The tail has a black stripe above. The ears are long and brown with black tips.The...
    • Bobcat

    • Mammals; Wildlife;
    • Bobcat crouched beside dried vegetation near road. Bobcats are medium-sized cats and cousin to the lynx. Their coat varies in color from shades of buff or brown fur with spotted or lined markings in dark brown or black. Their habitat varies from...
    • Cassin's sparrow status assessment and conservation plan

    • Birds; Migratory birds; Monitoring; Perching birds; Research; Statistics; Species of concern; Wildlife management;
    • This is a status assessment and conservation plan for the Cassin's Sparrow. It includes a description and natural history of the bird, as well as range information pertinent to breeding, migration and wintering, monitoring activities, population...
    • Columbian White-Tailed Buck

    • Endangered species;
    • White-tailed deer are generally distinguished from mule or black-tailed deer by their longer tail that is brown rather than black on the dorsal surface, a smaller metatarsal gland, and, in adult males, antlers with prongs arising from a single main...
    • Columbian White-Tailed Deer - Buck

    • Endangered species;
    • White-tailed deer are generally distinguished from mule or black-tailed deer by their longer tail that is brown rather than black on the dorsal surface, a smaller metatarsal gland, and, in adult males, antlers with prongs arising from a single main...
    • Columbian White-Tailed Deer

    • Endangered species;
    • White-tailed deer are generally distinguished from mule or black-tailed deer by their longer tail that is brown rather than black on the dorsal surface, a smaller metatarsal gland, and, in adult males, antlers with prongs arising from a single main...
    • Conserving borderline species

    • Endangered species; International affairs; Partnerships; Wildlife management; Wildlife restoration;
    • This is an overview of what Canada and the United States are doing together in order to help protect species the two countries deem as endangered. A description of the background of this partnership is given, followed by ten examples of individual...
    • Delaware wetlands status and changes from 1992 to 2007

    • Wetlands; Wetland restoration; Management; Conservation; Maps; Work of the Service; Wildlife refuges;
    • This report summarizes the 2007 status of wetlands across Delaware, details findings from the trends analysis of how and where wetlands were gained or lost between 1992 and 2007, and provides perspective on how those changes affect wetland...
    • Endangered red wolves

    • Endangered species; Wildlife restoration; Mammals; Reintroduction; Predator control;
    • Original format brochure.
    • Endangered red wolves

    • Document; Mammals; Endangered species; Extinctions;
    • This brochure talks about the red wolf being one of the most endangered animals in the world and on the edge of extinction.
    • 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)
    • Molt and aging critera for four North American grassland passerines

    • Birds; Grasslands; Migratory birds; Perching birds; Research; Species of concern;
    • This is a description of the molt and aging criteria for four grassland passerines. The species covered are Sprague's Pipit, Grasshopper sparrow, Baird's sparrows, and Chestnut-collared Longspurs. Molt information is important for determining...

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