Abstract
Differential use of song types according to context appears to be a common feature in songbirds. However, little is known about the effect that captivity can have on repertoire use. Vocal behaviour of 4 wild and 4 captive American male starlings observed during the same period was compared. Results showed that the quality and the quantity of song produced differed between the 2 situations. It appeared clearly that social environment plays a deciding role in the use of song in starlings. These results also indicate that birds do not necessarily produce the totality of their “repertoire” in different social contexts.
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