Nonbreeding season pairing behavior and the annual cycle of testosterone in male and female downy woodpeckers, Picoides pubescens
| Autor: | Kellam, James S. *, Wingfield, John C., Lucas, Jeffrey R. |
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| Zdroj: | In Hormones and Behavior 2004 46(5):703-714 |
| Databáze: | ScienceDirect |
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