Bird Study

Vocalizations and morphology: interpreting the divergence among populations of Chough Pyrrhocorax pyrrhocorax and Alpine Chough P. graculus

Bird Study | November 1, 2004 | Copyright

Capsule Differences in vocalizations among populations are mostly explained on morphological bases, but historical factors may have played a significant role in differentiation processes.

Aims To investigate the relationships among vocal and morphoogica variation in two corvids: Chough and Alpine Chough.

Methods We used data from 1 1 populations of Chough and seven populations of Alpine Chough spanning the Palearctic distribution of the two species. Three data sets (morphometry, spectrotemporal parameters of trill calls and acoustic repertoire) were analysed and their…

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Magazine article from: Bird Study ...and seven populations of Alpine Chough spanning...differences among populations were correlated...spectrotemporal divergence was similar...with similar morphology uttered similar...Morphology and vocalizations are often...Corvids: Chough Pyrrhocorax ...

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