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...
This is a preliminary biological assessment of Kirwin National Wildlife Refuge. Stimulation for the report was based on the concept that future decisions related to the biological portion of the Comprehensive Conservation Plan will be based on the...
This is a report that identifies migratory and non-migratory birds species that represent the highest conservation priorities to the U.S. Fish and Wildlife Service.
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...
For the past 18 months, the National Wildlife Refuge System has worked to create a vision that will guide the management of the Refuge System during the next decade and beyond. Conserving the Future is built on the foundation and inspiration of...
Oral history interview with Dave Marshall as interviewed by Mark Madison. Marshall shares memories of people such as William Finley, Stanley Jewett, Ida Gabrielson, and J. Clark Salyer.
