According to Wikipedia:
The lesser horseshoe bat (Rhinolophus hipposideros), is a type of European bat related to but smaller than its cousin, the greater horseshoe bat. The species gets its name from its distinctive horseshoe-shaped nose.
The lesser horseshoe bat is one of the world's smallest bats, weighing only 5 to 9 grams, with a wingspan of 192–254 mm and a body length of 35–45 mm. It has strong feet that it uses to grasp rocks and branches, and can see well in spite of its small eyes. Like most bats, lesser horseshoe bats live in colonies and hunt their prey by echolocation, emitting ultrasound from specialized round pads in their mouth.


