The Indiana bat (Myotis sodalis) was listed as a federally endangered species in 1967. Since that time, great effort has been expended to protect and restore habitat for this declining species. The bat hibernates in caves during winter months, however, it uses habitat throughout Ohio and much of the eastern U.S. during summer months. Recently, efforts have shifted from protection of their hibernacula to their summer habitat. Summer roosts are typically forest trees with exfoliating bark or other small cavities.

EnviroScience performs Indiana bat habitat assessments and mist net surveys. This is often required for many projects as a part of obtaining state or federal permits. Habitat assessments are used to identify if and where potential summer habitat occurs. The trees are marked, surveyed with GPS and placed on a GIS map to aid in avoidance or minimization of impacts. If these trees must be taken down between April 15 and September 15, mist net surveys are generally required to document the absence of the Indiana bat.