Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
10970805 | Animal Behaviour | 2012 | 5 Pages |
Abstract
⺠We tested predictions of the motivation-structural hypothesis in canyon wrens. ⺠We also tested whether wrens use low-frequency sounds as signals of aggression. ⺠Territory-holding canyon wrens changed their songs in response to playback of conspecific song. ⺠They used lower song frequencies and harsh notes more often following simulated territorial intrusions. ⺠Ours is the first study to experimentally demonstrate facultative song adjustment in a passerine.
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Authors
Lauryn Benedict, Anne Rose, Nathanial Warning,