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ZEISS DTI thermal imaging cameras. For more discoveries at night, and during the day.

Nocturnal call Sept. 2017 Limousin, France (1 Viewer)

Torchepot

Well-known member
United Kingdom
Among the countless glis glis and tawny owl calls (both on the first recording) I've come across this which has me stumped.

I may have distorted it a little - trying to boost the volume and reduce the background noise.

Any ideas?
 

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  • Mystery call.mp3
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Revisited the original recording and there's no significant difference in quality - just a lot quieter.

I've listened to it several times more and I'm beginning to think this could be some less usual Tawny Owl call?
 
Spectogram

The attached spectrogram shows quite pure tones with no harmonics which is consistent with the other recordings of Tawny Owl.
 

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Glis glis spectogram

Distinctive spectrogram of Glis glis for comparison
 

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    Glis glis spectogram.jpg
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