Infrasound in the capercaillie ( Tetrao urogallus ) |
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| Authors: | M Lieser P Berthold and G A Manley |
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| Institution: | (1) Max-Planck-Institute for Ornithology, Schlossallee 2, 78315 Radolfzell, Germany;(2) Institute for Zoology, Technische Universit?t München, Lichtenbergstr. 4, 85747 Garching, Germany |
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| Abstract: | We examined the sounds made by displaying male capercaillies on a lek in the Black Forest for infrasonic components. Vocalizations
did not contain infrasound, whereas flutter jumps produced substantial low-frequency sound energy, with regularly spaced frequency
peaks and maximum energy below 20 Hz. This pattern was found in recordings from different distances and for all tested individuals.
Nonvocal infrasound may be significant in territorial behavior or orientation of capercaillie. |
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| Keywords: | Tetrao urogallus Infrasound Vocalizations Flutter jump Orientation |
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