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| Brown long-eared bat | Plecotus auritus |
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SOUNDS: Brown long-eared bats produce very quiet echolocation calls that, with a heterodyne bat detector, can only be heard at a distance less than 5m from the detector. The bats produce a series of frequency modulated sweeps. This species is more commonly seen before it is heard. Social calls are occasionally heard as very soft 'chirps'.
Click to hear echolocation calls of
the brown long-eared bat slowed down 10 times
© Jon Russ 2001. Text refereed by Angela Ross & Lynne Rendle.
Use of the panda device courtesy of WWF-UK © 1986 WWF, ® Registered trademark owner. Reg charity 1081247