U.S. Fish and Wildlife Service

The USFWS revises the proposed critical habitat for the western distinct population segment of the yellow-billed cuckoo (western yellowbilled cuckoo) (Coccyzus americanus) under the Endangered Species Act.

Increased nitrogen (N) or sulfur (S) deposition may result from emissions from new or modified facilities subject to New Source Review (NSR), activities subject to requirements under the National Environmental Policy Act (NEPA), and other actions.

This cooperative plan is primarily designed to detect declines in territory occupancy, nest success, and productivity in six regions across the United States. Regional data for all population measures will be combined to examine trends nationwide.

Documents by Species table