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Tip: press play to see the sound's live frequency spectrum in blue over the waveform.
Recordist's notes
Initially, I thought it might be some bird, but after some research - there are probably no birds that could read above 60kHz, so this must have been a bat. In this original recording one can hear only little clicks, but in the following recordings I made versions that are half and quarter the speed. AB stereo recording (60cm) made with Sennheiser MKH 8020 on Sound Devices MixPre-6 II. Author's website: https://piotrekzyla.com
About the place
Ustka is a town of about 16,250 people in Pomerania, Poland. OttoAnna lists 25 field recordings from here.
Equipment mentioned: Sound Devices recorders and Sennheiser MKH microphones. Professional location recorders (702, 722, MixPre series) with very quiet preamps.
Recorded nearby
More by Piotrek Zyla
More birdsong & dawn chorus recordings
Sources & credits
- “Resident Rene, Przewłoka, Ustka, Poland - 1186a Bat ultrasonic chirp - original” by Piotrek Zyla – Public Domain Mark · radio aporee ::: maps via Internet Archive
- Reverse geocoding: GeoNames – CC BY 4.0