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Listening for Pipistrelle Calls at 50KHz

The two pipistrelle species do sound very similar. The key to separating them is to find the peak frequency.

If you hear a pipistrelle bat on your detector when you are standing at the spot and are tuned to 50kHz, you will usually hear a fairly high pitched sound as you will not be tuned into the peak frequency.

Listen to this audio clip of a pipistrelle bat at 50kHz. You can hear it is high pitched and fairly ‘tinny’ sounding.

At this stage you will not know which type of pipistrelle it is although you can recognise it has the typical repetition rate and rhythm of a pipistrelle.


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