A coat of feathers worn by an adult bird during the breeding season, usually acquired by partial spring moult, feather wear, or both; generally, the male's breeding plumage is more brightly coloured than the winter plumage or the female's.
^Bellrose, Frank C. and The Audubon Society (1983). The Audubon Society Master Guide to Birding. National Geographic Society. ISBN1426200722.
This article is part of Project Glossary, a All Birds project that aims to write comprehensive articles on each term related to animals.