The Northern long-eared bat (Myotis septentrionalis), is federally-listed as threatened and occurs in BCR 14. This species hibernates in caves or mines and has been severely impacted by the white-nose syndrome (WNS). This bat is listed as a Species of Greatest Conservation Need in one or more states in BCR 14.

Presume that these bats are present in or near your project. Contact your state wildlife agency before implementing a project. The 4d rule and individual state regulations will apply where your project is to take place.


The Northern long-eared bat uses a variety of forested habitat for summer roosting and maternity sites. Specifics on particular preferred forest types and stand conditions are poorly understood at present. In general, summer roosting and maternity areas occur in a number of different forest types. The stand characteristics consist of a relatively closed canopy and larger stand diameters although pole-sized trees have been used. Shaggy bark and standing dead trees with loose bark are important. This species hunts along forest or wetland edges and in riparian areas.


Maintain the characteristics for summer roosts and maternity areas across all the forest types in BCR 14. Avoid known roost trees or maternity trees during forest management activities. Forest management operations should not occur from June 1 to July 30 in areas that are suspected to contain active roosting or maternity conditions.

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