The site is rich in mammal species including both species of pipistrelle and noctule bat. Nyctalus is a genus of vespertilionid bats commonly known as the noctule bats. Moreover, it is an important habitat for bats, such as the noctule. It is a medium-sized bat, slightly smaller than the common noctule. There is also some risk to the greater noctule from parasitism between bats. About 5,000 common noctule and several other bat species hibernate inside the abutments. Daubenton, brown long-eared, noctule, Nathusius, soprano and common pipistrelle bat. The common noctule uses two main calls for echolocation. The bat survey recorded common pipistrelle, soprano pipistrelle, Daubenton's, noctule and serotine bats in 2011. Other noctule bats in China include the common noctule, lesser noctule, and birdlike noctule. The SSSI includes an orchard, where Daubenton's Bat and Noctule Bat roost. Evidence of greater noctule bat bones have been found in owl pellets. Greater noctule bats feed on nocturnal migrating passerines. The fossils of greater noctule are almost non-existent prior to the Miocene epoch. The largest concentration of greater noctule bat is in the south western portion of Spain.