Fidelity of vocal mimicry: Identification and accuracy of mimicry of heterospecific alarm calls by the brown thornbill
Avian vocal mimicry has been studied for decades, but little is known about its function or requirements for accurate imitation. Furthermore, progress is hampered by the difficulty in identifying which vocalizations are indeed mimetic. We tested historical claims of vocal mimicry in the brown thornbill, Acanthiza pusilla, using a combination of human and computer methods to identify mimicry, followed by comparisons of acoustic similarity with model vocalizations. We recorded vocalizations of...[Show more]
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