Sounds of Bats

Flying Bat

Hear the sounds of a  Myotis auriculus and a  Lasiurus borelis recorded in Arizona, USA.

All the calls on this page were recorded with a Petterson D-980 bat detector and time-expanded by a factor of ten before being dumped to tape on a Sony Professional Walkman. Calls were resampled at 44.1 kHz and 8 bit resolution on a soundcard.

All calls were recorded by  Dr. John Altringham.

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© Rolf Langebartels, Berlin 2014