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Showing 1 to 6 of 6 for “"vocal mimicry"”.
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Vocal mimicry in the brown thornbill
Mimicry of other species' alarm calls is common among birds, but its function is often unknown. Although anti-predator functions for mimetic alarm calls have been suggested, these are yet to be tested. In this thesis I formally evaluated claims of vocal mimicry in the brown thornbill (Acanthiza …
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Vocal mimicry in the brown thornbill
Mimicry of other species' alarm calls is common among birds, but its function is often unknown. Although anti-predator functions for mimetic alarm calls have been suggested, these are yet to be tested. In this thesis I formally evaluated claims of vocal mimicry in the brown thornbill (Acanthiza …
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Fork-Tailed Drongos (Dicrurus adsimilis) use different types of mimicked alarm calls in response to different alarm threats
Vocal mimicry is a fascinating phenomenon in the animal kingdom, noted in scientific research as early as the 18th century. Approximately 20% of bird species use vocal mimicry, yet very little is understood regarding why species use vocal mimicry, whether it provides functional benefits and in …
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Exploiters and exploited: antagonism, mutualism and mimicry in an ecological community
… in an ecological community shape the use of vocal mimicry in nest defence. I find that drongos use vocal mimicry in response to cuckoos and nest predators, and that this is likely an adaptation to (sometimes deceptively) recruit heterospecifics to assist in nest defence. Chapter 4 asks how …
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Food theft by deceptive alarm calls in the fork-tailed drongo
… by mimicked false alarm calls, including mimicry of the host species alarms, than by a drongo' s own alarms. In addition, host species habituated to repeated playback of the same alarm but resumed their response when a new alarm call was played, and drongos naturally changed their alarm …
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Coevolution between brood-parasitic honeyguides and their hosts
… provisioning from their foster parents by using vocal mimicry, and investigate why such extra food would be required. I demonstrate that both greater and lesser honeyguides mimic the sound of a brood of chicks of their respective hosts in order to receive higher levels of provisioning from their …