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 report intended to complement the National and State reports from the 1996 National survey of Fishing, Hunting, and Wildlife-Associated Recreation. It focuses on black bass anglers. The report has five sections. The first section shows...
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.