New York Field Office
Northeast Region

Indiana Bat

(Myotis sodalis)



Habitat: The Indiana bat typically hibernates in caves/mines in the winter and roosts under bark or in tree crevices in the spring, summer and fall.  Suitable potential summer roosting habitat is characterized by trees (dead, dying, or alive) or snags with exfoliating or defoliating bark, or containing cracks or crevices that could potentially be used by Indiana bats as a roost.  Streams, associated with floodplain forests, and impounded water bodies (ponds, wetlands, reservoirs, etc.) where abundant supplies of flying insects are likely found provide preferred foraging habitat for Indiana bats, some of which may fly up to 2-5 miles from upland roosts on a regular basis.  Indiana bats also forage within the canopy of upland forests, over clearings with early successional vegetation (e.g., old fields), along the borders of croplands, along wooded fencerows, and over farm ponds in pastures (Service 2007).  While Indiana bats appear to forage in a wide variety of habitats, they seem to tend to stay fairly close to tree cover. 





Wintering indiana bats in hibernaculum.

Wintering indiana bats in hibernaculum.


Main Threats: The most significant rangewide threats to the Indiana bat have traditionally been habitat loss/degradation, forest fragmentation, winter disturbance, and environmental contaminants.  In addition to these threats, collisions with man-made objects climate change and white-nose syndrome (WNS) are increasingly being identified as significant threats to the future recovery of the Indiana bat.

Species Range:  States/US Territories in which the Indiana bat is known to occur:  Arkansas, Connecticut, Georgia, Illinois, Indiana, Iowa, Kentucky, Maryland, Michigan, Mississippi, Missouri, New Jersey, New York, North Carolina, Ohio, Oklahoma, Pennsylvania, Tennessee, Vermont, Virginia, West Virginia

Distribution in New York

See Federally Listed Species Occurrences by County [PDF] for information on resident populations of Indiana bats.  Please note that migrating Indiana bats may occur throughout New York State.

Radiotagged indiana bat

Indiana bat with transmitter attached



Draft Recovery Plan (2007)

5-Year Review

The New York Field Office is participating in many actions associated with the WNS investigation.  Some of these actions directly involve Indiana bats and others involve other bat species.  For example, we assisted with counts of hibernating bats during the winter of 2009-2010 (photo at right).

We also assisted the U.S. Army with an investigation of WNS transmission during the summer of 2010 (photo at right). 

Examples of Actions that May Affect This Species

Residential and commercial development, roads, construction and operation of wind turbines, some silvicultural practices, pesticide application, quarrying and mine operations, filling of sinkholes/caves, human disturbance of hibernating bats

Protocols/Best Management Practices

What to Do if this Species Occurs on your Property or Project Site

Follow instructions on our Project Reviews page.


Copenhagen Wind HCP
Federal Register Notice of Initial Scoping
Press Release
Project Planning Area (pdf)
Project Location (pdf)


New York State DEC and Service biologists

Biologist swabbing little brown bat for fungus

Additional Information


FWS Endangered Species Home PageFWS Endangered Species Northeast Region

Endangered Species


Listing & Classification


Long Island Recovery Efforts

Project Reviews

Species in New York State



Last updated: April 28, 2015
All images by FWS unless otherwise noted.