This is a medium-sized bat with large, long ears. It is gray, brown, or black and generally active only after full darkness.

Townsend's big-eared bat is very vulnerable to human disturbance, and its numbers are declining. In Oregon, it is classified as a State Sensitive Species. It's also an Oregon Conservation Strategy Species in all ecoregions except Nearshore.

Never disturb this bat if you are in a cave.

Photo by ©Michael Durham