Nyctalus leisleri (Kuhl, 1817)
Risk Level Europe: Least Concern - LC (Temple & Terry, 2007).
Italy: Near Threatened - NT (Rondinini et al., 2013).
This is one of the most common bat species in the study area, detected in 32.0% of kilometric cells in the study area up to an altitude of 2000 m. A temporary roost used by 1-2 individuals was located under the roof of a residential building in Palanfrè (Vernante) during summer 2011 at 1450 m a.s.l. Ten individuals (5 males and 5 females) were captured nearby waterways in the Gesso valley . Although breeding sites were not identified, post-lactating females were captured, indicating that the species probably reproduces within the study area.