The whiskered bat (Myotis mystacinus) and Brandts bat (Myotis brandtii) are two very closely related bats in the Myotis family, which also includes the Daubenton’s bat.
The two species are almost identical and are incredibly difficult to tell apart, even by an expert with a bat in the hand. When out in the field, they are often referred to as whiskered/Brandts bats.
They generally roost in older buildings, in tight little crevices amongst the walls and roof tiles, however they are never common species.
Find out more information on the whiskered and Brandt’s bats by reading the Bat Conservation Trust factsheets: