grunt-whistle

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grunt-whistle

animal behavior

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anseriform
Behaviour
The “grunt-whistle” involves throwing an arc of water at the female by a sideways flick of the bill, followed by a rearing up of the body, shaking of the head and tail, and, during the whole sequence, giving the call indicated by the behavioral term. The…
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The “grunt-whistle” involves throwing an arc of water at the female by a sideways flick of the bill, followed by a rearing up of the body, shaking of the head and tail, and, during the whole sequence, giving the call indicated by the behavioral term. The…
Read More