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...
Work of the Service; History; Recreation; Wildlife management
This is a report that describes various programs successfully implemented and various tasks completed, by the U.S. Fish and Wildlife Service through the Wildlife and Sport Fish Restoration Programs, Division of Federal Assistance. Articles include...
