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Lookup NU author(s): Dr Tom Smulders
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Most temperate songbird species sing seasonally, and the brain areas involved in producing song (the song system) vary in size alongside the changes in behavior. Black-capped chickadees (Poecile atricapillus) also sing seasonally, and we find that there are changes in the stereotypy and the length of the fee-bee song from the nonbreeding to the breeding season. Yet despite these changes, we fail to find any evidence of seasonal changes in the song system. The song system of males is larger than that of females, as is typical in songbirds, but the ratio between the sexes is small compared to other species. We suggest three hypotheses to explain our failure to find seasonal variation in the chickadee song system. © 2000 Wiley Periodicals, Inc.
Author(s): Smulders TV, Lisi MD, Tricomi E, Otter KA, Chruszcz B, Ratcliffe LM, DeVoogd TJ
Publication type: Article
Publication status: Published
Journal: Journal of Neurobiology
ISSN (print): 0022-3034
ISSN (electronic): 1932-846X
Publisher: John Wiley & Sons, Inc.
PubMed id: 16779823
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