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...
Fishes; Fisheries management; Fish hatcheries; Species of concern; Conservation; Management;
The purpose of this document is to propose a framework for the development of these partnerships and to define the Service's
role in the management and conservation of the Nation's paddlefish and sturgeon resources.