| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 10301121 | Hormones and Behavior | 2012 | 9 Pages |
Abstract
⺠We examined soft song and endocrine correlates in breeding and non-breeding birds. ⺠Soft song increased in the non-breeding season relative to broadcast song. ⺠Increased soft song correlated negatively with plasma testosterone concentrations. ⺠Soft song trill minimum frequency and buzz repetition rate differed between seasons. ⺠Soft song in wintering birds may reduce predation and energetic costs of singing.
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Authors
Chris J. Maddison, Rindy C. Anderson, Nora H. Prior, Matthew D. Taves, Kiran K. Soma,