 Lesser noctule

The lesser noctule, Leisler's bat or the Irish bat ("Nyctalus leisleri"),  is a species of insectivorous bat belonging to the vesper bat family, Vespertilionidae.It is a medium-sized bat, slightly smaller than the common noctule.It has a length of 48 to 68 mm (head and body) and a wingspan of 260 to 330 mm.