Birds; Grasslands; Migratory birds; Perching birds; Research; Species of concern;
This is a description of the molt and aging criteria for four grassland passerines. The species covered are Sprague's Pipit, Grasshopper sparrow, Baird's sparrows, and Chestnut-collared Longspurs. Molt information is important for determining...
Endangered species; Policies; Work of the Service;
This glossary is intended to give the meaning of key words but does not necessarily provide a legal definition or thorough description. To locate the legal definitions of Endangered Species Act terms, please see the end of this document.