Duetting and mate-guarding in Australian magpie-larks (Grallina cyanoleuca)
A recently favored hypothesis is that duetting in birds has a mate-guarding function: a male responds vocally to his partner's song, thereby forming a duet that repels males who are attracted to her song. Previous studies have not provided unambiguous tests of the mate-guarding hypothesis because: (1) the probability of a male answering his partner's song has not been shown to increase specifically when the female is fertile, and (2) the probability of a male answering his partner's song has...[Show more]
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|Source:||Behavioral Ecology and Sociobiology|
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