Journal
ETHOLOGY
Volume 125, Issue 9, Pages 652-659Publisher
WILEY
DOI: 10.1111/eth.12918
Keywords
acoustic signals; China; common cuckoo; female vocalization; playback; sparrowhawk
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Acoustic signals play a key role in shaping the relationships in birds. Common cuckoos Cuculus canorus are known to produce various call types, but the function of these calls has only been studied recently. Here, we used a combination of field recordings (conducted in 2017) and playback experiments (conducted in 2018) to investigate the functional significance of common cuckoo calls. We found significant differences in the characteristics between male two-element cu-coo and three-element cu-cu-coo calls, with these two call types being used in different contexts. The three-element male cu-cu-coo calls were associated with females emitting their bubbling call. Playback experiments revealed that both males and females exhibit stronger responses to playing female bubbling calls than with the calls of the Eurasian sparrowhawk (Accipter nisus) serving as a control, suggesting a significant intraspecific communication function for this call type. However, we did not find any evidence to support mate attraction in male calls, as females were not stimulated by playback of male calls compared with sparrowhawk calls in the control group.
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