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Video footage filmed by David King

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Copyright of Batbox : All rights reserved © 2007



Hildebrandt's horseshoe bat
Hildebrandt's horseshoe bat, Rhinolophus Hildebrandtii, is one of the largest horseshoe bats. This clip was filmed in South Africa on the Mozambique /Zimbabwe border, alongside the Limpopo river. Horseshoe bats use a different echolocation system to other bats.

They emit very accurately tuned peeping noises at very high frequencies and by using a Doppler shift synthesis of the returning echoes, they can build an accurate sound 'movie' of their surroundings. They use their horseshoe shaped 'nose dish' to focus the calls rather like we would use a torch or spotlight to see around us at night. The sounds, which would be well above human hearing range, were reduced to audibility with an early version of the BATBOX III bat detector.

This Hildebrandts horseshoe bat Rhinolophus hildebrandti was filmed in South Africa, using the original Batbox III to pick up the ultrasonic calls.


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