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 fact sheet describing the United States Fish and Wildlife Service. It briefly describes the mission and history of the Service and the Service's current conservation work and plans for the future.
