Evolution and diversity in avian vocal system: an Evo-Devo model from the morphological and behavioral perspectives.


Birds use various vocalizations to mark their territory and attract mates. Three groups of birds (songbirds, parrots, and hummingbirds) learn their vocalizations through imitation. In the brain of such vocal learners, there is a neural network called the song system specialized for vocal learning and production. In contrast, birds such as chickens and… (More)
DOI: 10.1111/j.1440-169X.2009.01091.x


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