Species MammalsWestern Mastiff Bat

Western Mastiff Bat

Eumops perotis

UncommonMammal
Illustration of Western Mastiff Bat (Eumops perotis)
Safety note: May carry rabies — do not approach or handle.

The Western Mastiff Bat is the largest bat in North America, with a wingspan reaching 22 inches. Its massive, free-tailed structure requires it to drop from high cliff edges or tall buildings to gain enough airspeed before it can fly. Its echolocation calls are so low in frequency they are audible to the human ear as a faint buzzing.

Habitat
Arid cliffs, tall buildings, and open desert landscapes
Diet
Large moths, beetles, and other large insects
How common
Uncommon

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