Fringed Myotis

This young fringed myotis (Myotis thysanodes) bat has just learned to fly. It will, however, contnue to nurse from its mother until it is able to hunt on the wing. Coconino National Forest, Arizona. Photo Credit: Michael Durham,


  • Species Common Name Fringed Myotis
  • Species Scientific Name Myotis thysanodes
  • Federal Listing Status Species of Concern
  • State Listing Status Sensitive


    Special needs

    Fringed myotis require forest habitat. They use large snags and rock features for day, night, and maternity roosts, and caves and mines for hibernacula. They feed primarily on beetles. They occasionally use bridges for night-roosting.

    Limiting factors

    Fringed myotis are patchily distributed and locally uncommon. They are vulnerable to disturbance at roosts. Reduction of large snags and low reproductive rates may also be limiting.

    Conservation actions

    Use gates and seasonal closures to protect known hibernacula. Retain and create large-diameter hollow trees and large-diameter, tall, newly-dead snags during forest management activities.

    Key reference or plan

    ISSSSP Bat Grid Monitoring – Oregon and Washington