It achieves a maximum body size of around 5 to 6 cm and a wingspan of up to 25 cm with a weight of 6 to 10 g. Its appearance makes it easy to confuse with the other pipistrelle bats. A good distinguishing feature from the common pipistrelle and soprano pipistrelle is the 5th finger, which is usually longer in the Nathusius's pipistrelle.
The Nathusius's pipistrelle summer habitats are crevice roosts such as trunk cracks, tree hollows and rock crevices, but they can also be found on buildings, e.g. behind wooden panelling. In winter, the species often occupies wood piles or tree hollows.
The text is a translation of an excerpt from Wikipedia (https://de.wikipedia.org/wiki/Rauhautfledermaus). On wikipedia the text is available under a „Creative Commons Attribution/Share Alike“ licence. Status: 13 August 2021