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Endangered Species Program
Conserving and restoring threatened and endangered species and their ecosystems
Northern Long-eared Bat
Hibernacula and Maternity Roost Tree Location Information
The northern long-eared bat 4(d) rule prohibits incidental take that may occur from tree removal activities within 150 feet of a known occupied maternity roost tree during the pup season (June 1 to July 31) or within a 1/4 mile of a hibernation site, year round.
Location information for hibernacula and maternity roost trees is generally kept in state Natural Heritage Inventory databases – the availability of this data varies state-by-state. Links to state online Natural Heritage Programs and links to U.S. Fish and Wildlife Service Field Offices are provided below.
We do not require private landowners to conduct surveys on their lands. However, surveys can reduce uncertainties and facilitate project planning. Recommended survey methods are available.
Connecticut Department of Energy and Environmental Protection: Natural Diversity Database
Please contact the U.S. Fish and Wildlife Service Ecological Services Office
USFWS Kentucky Ecological Service Field Office - Kentucky Topographic Quadrangles Containing Northern Long-eared Bat Roost Trees and Hibernacula
Townships with known roost trees may be found on the Minnesota DNR website at http://files.dnr.state.mn.us/eco/ereview/minnesota_nleb_township_list_and_map.pdf
USFWS Missouri Ecological Services Field Office (provides contact information)
New Jersey Natural Heritage Program - scroll to down page to "Making a Data Request"
USFWS New Jersey Field Office
In Ohio, the USFWS’s Information for Planning and Conservation (IPaC) System can be used to determine if a project is located near a hibernaculum or maternity roost tree: https://ecos.fws.gov/ipac/
Virginia Department of Game and Inland Fisheries - Northern Long-eared Bat Hibernacula and Maternity Roost Tree Location Information
Last updated: March 12, 2018