Endangered species; 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...
Work of the Service; Marine birds;birds; Coastal environments; Cliffs; Islands;
2006, Castle Rock, Shumagin Alaska Maritime National Wildlife Refuge; AMNWR; Birds; Coastal environments; Islands; Biology; work of the refuge; Shumigans; Alaska Peninsula; Marine birds
A FWS biologist is observing a condor in captivity at the Patuxent Research Refuge. The California condor is one of the largest flying birds in the world, with a wing span of more than nine feet. Condors can soar and glide for hours without...
A juvenile black-crowned night heron standing on tree limb. At sunset, when most herons are flying toward their roosting places, the black-crowned herons are leaving the trees where they have spent the day scattering over the marshes to feed. By...
