Bats in Oregon

There are 15 species of bats native to the state of Oregon. The most common bats in Oregon include the Long-legged Myotis and the Big Brown Bat. The Hoary Bat is the largest bat in the state, with a wingspan between 13 and 16 inches, while the Canyon Bat is the smallest, with a wingspan of around 7.5–8.5 inches.

Bats in Oregon (OR)

Different Types of Bats in Oregon

Free-tailed Bats (Molossidae)

  • Mexican Free-tailed Bat

Vesper Bats (Vespertilionidae)

  • Big Brown Bat
  • California Myotis
  • Canyon Bat
  • Fringed Myotis
  • Hoary Bat
  • Little Brown Bat
  • Long-eared Myotis
  • Long-legged Myotis
  • Pallid Bat
  • Silver-haired Bat
  • Spotted Bat
  • Townsend’s Big-eared Bat
  • Western Small-footed Myotis
  • Yuma Myotis

Places To Go Bat Watching in Oregon

Oregon Caves National Monument & Preserve is home to several species of bats native to the state. The most common ones that can be seen emerging from the cave at dusk are the Yuma Myotis, the Townsend’s Big-eared Bat, and the Long-eared Myotis. The Townsend’s Big-eared Bat is especially visible during winter.


1. Are bats protected in Oregon?

Yes, it is illegal to kill bats in Oregon. 8 of the 15 bats in the state have been declining in population and, as a result, need protection to ensure they survive.

2. Do bats hibernate in Oregon?

During winter, several bats in Oregon will either migrate south or hibernate in a cave or a mine. Many caves are closed to the public during bat hibernation to avoid disturbing them or risking the spread of White-nose Syndrome. This disease infects hibernating bats and can be pretty fatal.

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