This video from Spain is about a Pipistrelle bat, Pipistrellus pipistrellus.
In Leiden in The Netherlands, there are various species of mammals.
They include seven species of bats.
The most common species is the pipistrelle bat, seen over 400 times in 2004.
Myotis emarginatus: here.
Bat protection: here.
Caribbean bat evolution: here.