Certain vocalizations of birds, characteristic of males during the breeding season, for the attraction of a mate and for territorial defense. Birdsong also reinforces pair bonds, and some species have a flight song. Birdsongs are usually more complex and longer than birdcalls, which are used for communication within a species. Birdsong may be hereditary or learned; a newly hatched male chaffinch, for example, can sing a subsong but must learn to sing the true song by listening to and imitating adult males.
This entry comes from Encyclopædia Britannica Concise.
For the full entry on birdsong, visit Britannica.com.
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