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      A mutual understanding? Interspecific responses by birds to each other's aerial alarm calls

      , ,
      Behavioral Ecology
      Oxford University Press (OUP)

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          Allometry of alarm calls: black-capped chickadees encode information about predator size.

          Many animals produce alarm signals when they detect a potential predator, but we still know little about the information contained in these signals. Using presentations of 15 species of live predators, we show that acoustic features of the mobbing calls of black-capped chickadees (Poecile atricapilla) vary with the size of the predator. Companion playback experiments revealed that chickadees detect this information and that the intensity of mobbing behavior is related to the size and threat of the potential predator. This study demonstrates an unsuspected level of complexity and sophistication in avian alarm calls.
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            Characteristics of Some Animal Calls

            P Marler (1955)
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              Suggested experimental designs for song playbacks

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                Author and article information

                Journal
                Behavioral Ecology
                Oxford University Press (OUP)
                1465-7279
                1045-2249
                September 01 2007
                September 01 2007
                : 18
                : 5
                : 944-951
                Article
                10.1093/beheco/arm063
                32aa4fd4-abed-4d44-8450-40b79c6dfc3a
                © 2007
                History

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