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Myotis keenii

Keen's Myotis

Order: Chiroptera
Family: Vespertilionidae

Image of Myotis keenii
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Conservation Status: Least Concern.

Keen's myotis is a medium-sized bat with a long tail. It does not demonstrate narrowly specialized habitat needs. It roosts in caves and trees in the summer, sometimes in small colonies. The bats hunt insects at night and are most active shortly after sunset and shortly before dawn. Larger groups of bats form colonies to hibernate together in the winter, sometimes in the same hibernaculum as other species of bats.  As with other bats that hibernate, breeding takes place in the fall, but the fetus does not develop until spring. In the summer, males usually roost separately from females and their young.

Also known as:
Keen's Bat

Range: 40.4-55 mm

Average: 5 g
Range: 4-6 g


Merriam, C.H., 1895.  Bats of Queen Charlotte Islands, British Colombia. The American Naturalist, 29:860-861.


Mammal Species of the World

Mammalian Species, American Society of Mammalogists' species account

Distribution of Myotis keenii

Image of Myotis keenii
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