Species › Mammals › Eastern Small-footed Bat

Eastern Small-footed Bat

Perimyotis subflavus

UncommonMammal
Illustration of Eastern Small-footed Bat (Perimyotis subflavus)
Safety note: May carry rabies — do not approach or handle.

The Eastern Small-footed Bat is one of North America's smallest bats and one of the most cold-tolerant, frequently found hibernating near the cold entrances of caves where other bats avoid. Its tiny feet—less than 8 mm long—and black facial mask are key field marks. Unfortunately, this bat has been particularly hard hit by White-nose Syndrome, a devastating fungal disease affecting hibernating bats.

Habitat
Caves, cliff faces, and rocky outcrops in eastern forests
Diet
Small flies, beetles, and moths
How common
Uncommon

Best time to see a Eastern Small-footed Bat

The best time to see a Eastern Small-footed Bat is January–May, when about 63% of U.S. sightings happen, based on 2,741 research-grade iNaturalist observations.

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