File:Rhinolophus ferrumequinum - Greater Horseshoe bat (2321181688).jpg

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Horseshoe bats seems to be extremely sensitive to disturbance during the winter (particularly the lesser horseshoe bat) and taking pictures of these species could be very dangerous for the survival of the individuals. The non natural awakening of an hibernating bat provoke the burning of an important part of the lipid storage that the bat needs to stay alive during all the winter. When you take pictures, light, ultrasounds of the flash, warmth of the photographer that could change the cave temperature, etc... increase the probability to provoke the awakening of the bat.

This individual has been photographed in a touristic cave and It seems that he was habituated to the noise and light. The hind legs are completely relaxed. This is an indication that the individual was not stressed and was still asleep. Horseshoe bats have a reflex contraction of the hind legs when stressed during the overwintering.
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Rhinolophus ferrumequinum - Greater Horseshoe bat

Author Gilles San Martin from Namur, Belgium

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This image, originally posted to Flickr, was reviewed on 12 February 2013 by the administrator or reviewer File Upload Bot (Magnus Manske), who confirmed that it was available on Flickr under the stated license on that date.

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current02:02, 12 February 2013Thumbnail for version as of 02:02, 12 February 20131,704 × 2,272 (1.31 MB)File Upload Bot (Magnus Manske) (talk | contribs)Transferred from Flickr by User:Jacopo Werther

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