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...
Mammals; Wildlife management; Population control; Endangered species
Diefenbach, D. R.; Wagner, T - U.S. Geological Survey, Pennsylvania Cooperative Fish and Wildlife
Research Unit, Pennsylvania State University, University Park, PA; Stauffer, G.T. - Pennsylvania Cooperative Fish and Wildlife Research Unit,...
Birds; Biologists (USFWS); Scientific personnel (USFWS); Population control;
On 12-13 April 1988 a workshop on the analysis of avian population trends was held at the Patuxent Wildlife Research Center in Laurel, Maryland. The workshop was cosponsored by the Branch of Migratory Bird Research of the Patuxent Wildlife...
Salt marshes, especially the muddy, wet, intertidal portions of them that are described in this report, have often been considered wastelands--areas to be filled to make useful land or to be dredged to make useful water. From the scientific point...
Seventy-five years of successful
wildlife management is the
remarkable legacy of the
Restoration Act, and the cause
of our 75th celebration. Along
with the Dingell-Johnson Sport
Fish Restoration Act, it is the