Which bat species is common throughout Pennsylvania but not found in the southeast corner?

The pipistrelle bat is indeed a species that is common throughout Pennsylvania, but it is specifically absent from the southeast corner of the state. This small bat typically thrives in a variety of habitats, including woodlands, urban areas, and even agricultural settings. Its adaptability to different environments contributes to its prevalence across much of the state, while certain ecological factors and habitat preferences may limit its presence in the southeastern region.

In contrast, the other bat species mentioned have broader distributions and may be found throughout various locations, including the southeast corner of Pennsylvania. For instance, the northern long-eared bat is known to inhabit a range of environments throughout the state, while the little brown bat has a wide distribution and has historically been numerous in Pennsylvania. The hoary bat, being a migratory species, can also be found in various habitats across the state.