Bats in Colorado

There are 19 species of bats native to Colorado. The Big Brown Bat is the most common and largest, with a wingspan of 16 inches. It shares this position with the Hoary Bat, which also has a wingspan of around 13-16 inches. On the other hand, the Canyon Bat is the smallest in the state, with a wingspan of 8 inches.

Bats in Colorado (CO)

Different Types of Bats in Colorado

Free-tailed Bats (Molossidae)

  • Big Free-tailed Bat
  • Mexican Free-tailed Bat

Vesper Bats (Vespertilionidae)

  • Allen’s Big-eared Bat
  • Big Brown Bat
  • California Myotis
  • Canyon Bat
  • Eastern Red 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
  • Tricolored Bat
  • Western Small-footed Myotis
  • Yuma Myotis

Places To Go Bat Watching in Colorado

Colorado has several amazing places to go bat-watching. The Orient Mine is home to a colony of 250,000 Mexican Free-tailed Bats, while there have been sightings of several bats in Rocky Mountain National Park, like the Big Brown Bat, the Silver-haired Bat, and the Western Small-footed Myotis.


1. Are bats protected in Colorado?

Bats are protected under federal and state law. The endangered Little Brown Bat can be found in Colorado.

2. Can you own a bat in Colorado?

No, it is illegal to own wildlife like bats in Colorado.

3. Do bats hibernate in Colorado?

Some bats stay in one place in Colorado throughout the year and hibernate, while others migrate to different parts in the winter or leave the state when it starts to get cold.

4. When do bats return to Colorado?

Bats that leave the state during the winter return around April and May.

5. When do bats migrate in Colorado?

They begin to migrate at the end of summer or early fall, i.e., around September or October.

Subscribe our newsletter

Enter your email here to stay updated with the animal kingdom