Tail flicking in birds

Abstract

Schwanzwippen ist bei einer Reihe von Vogelarten ein sehr auffälliges Verhalten, dennoch ist die Funktion dieses Verhaltens bislang wenig geklärt. In dieser Arbeit werden verschiedene Hypothesen vorgestellt und diskutiert. Dabei erscheinen Hypothesen am überzeugendsten, die dieses Verhalten in einem Räuber-Beute-Kontext platzieren. Wippen signalisiert die Wachsamkeit eines Individuums an einen potenziellen Beutegreifer. Mögliche weitere Interpretationen sind Alarmsignale oder Kommunikation innerhalb eines Paares, sowie eine lokomotorische Funktion. Die letzten drei Hypothesen wurden bislang allerdings noch nicht experimentell getestet oder durch Beobachtungen bestätigt.Tail movements such as wagging, flicking or pumping are reported from many bird species but their adaptive functions remain poorly understood. Different hypothesis have been explicated, e.g. signalling quality to sexual partners, quality advertisement, serving as an alarm signal, as a signal of submission, signalling to a predator that it has been spotted, signaling quality to a predator or signaling inpalatability. Further it may serve to flush prey and it may support the vocal communication especially in habitats with much noise. Locomotory functions have also been proposed. However, most of these suggestion remain poorly tested. Here, I present some evidence that tail flicking serves as a signal to a potential ambushing predator, rather than an alarm signal to conspecifics or as a signal of submission, but further studies should be encouraged to examine this behaviour in detail. Especially, hypotheses dealing with communication within a pair and locomotory functions of tail movements seem promising

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Last time updated on 27/08/2013

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