Song sparrows do not discriminate between their own song and stranger song.

Behavioural Processes(2020)

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摘要
•Song sparrows do not discriminate between their own songs and stranger songs.•We measured the territorial defense of male song sparrows to own and stranger song.•Birds were equally aggressive towards both categories of song.•The results suggest lack of auditory self-recognition in song sparrows.•Using bird’s own song in playback experiments is a valid approach.
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关键词
Self recognition,Dear enemy effect,Bird's own song,Song learning
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