Vocal and anatomical evidence for two-voiced sound production in the greater sage-grouse Centrocercus urophasianus.


Greater sage-grouse, Centrocercus urophasianus, have been a model system in studies of sexual selection and lek evolution. Mate choice in this species depends on acoustic displays during courtship, yet we know little about how males produce these sounds. Here we present evidence for previously undescribed two-voiced sound production in the sage-grouse. We… (More)
DOI: 10.1242/jeb.033076


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