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Long-eared Owl - Asio otus

Photo: SteveLeoEvans (; United Kingdom; Adult;
Song: The advertising call of males is a series of low-pitched "hooo" reminiscent of the sound made by blowing across the open top of an empty wine bottle. "Hooos" delivered at a frequency of 10-30 per minute.
Sound: Lang Elliott; 1990 Mar 10; USA, New York; Adult; Male; Primary Sound;


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