Silver-haired Bat

Photo Credit: Roger Rodriguez


  • Species Common Name Silver-haired Bat
  • Species Scientific Name Lasionycteris noctivagans
  • Federal Listing Status Species of Concern
  • State Listing Status Sensitive


    Special needs

    Silver-haired bats inhabit late-successional conifer forests. They use large snags and hollow trees for day, night, and maternity roosts. They may be found in other habitat types during migration.

    Limiting factors

    Silver-haired bats have low reproductive rates. They are vulnerable to habitat loss, including reductions in late-successional conifer forests and their components (e.g., hollow trees and large, newly-dead snags). Migratory behavior increases vulnerability of this species to habitat changes and wind turbine-related mortality in the spring and fall. Mortality of mature females in the spring may be particularly problematic.

    Conservation actions

    Maintain late-successional conifer habitat. Maintain and create large-diameter hollow trees and snags. Implement impact reduction strategies (e.g., operational minimization) at wind energy facilities to reduce fatalities. Investigate other best management practices for implementation at wind energy facilities.