Or wear. Wearing down of the feathers.[1] Feathers are continually subjected to the degrading effects of the environment from the moment they grow.[2]
References[]
- ^ Simpson & Day (1999). A Field Guide to the Birds of Australia, 6th Edition. Penguin. ISBN 0-691-04995-5.
- ^ Sibley, David. Sibley's Birding Basics. New York: Alfred A. Knopf, 2002. Print.
This article is part of Project Glossary, an All Birds project that aims to write comprehensive articles on each term related to animals. |
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