Waterfowl; Population control; Surveying; Habitat conservation; Birds;
In North America the process of establishing hunting regulations for waterfowl is conducted annually. In the United States the process involves a number of scheduled meetings in which information regarding the status of waterfowl is presented to...
This is a report on wetlands growth in the conterminous United States between 1998-2004. It offers information on growth only; wetland quality is not explored in this report.
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...
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...
