Haff, Tonya; Magrath, Robert D
Many nestling birds go silent in response to parental alarm calls, potentially lowering their risk of being overheard by predators. Parents are not always nearby, however, and so offspring could also benefit if they respond to the alarm calls of other species. Response could be innate, particularly if heterospecific alarm calls are acoustically similar to conspecific alarms, or learned through experience or association with parental behaviour. We investigated the responses of both young (5-6....[Show more]
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