The Little Brown Bat was once one of North America's most abundant bats, forming maternity colonies of thousands in buildings and caves. White-nose Syndrome, a fungal disease first detected in 2006, has killed over six million bats and devastated little brown bat populations across the eastern United States. Surviving individuals can live over 30 years, one of the longest lifespans of any small mammal.
Best time to see a Little Brown Bat
The best time to see a Little Brown Bat is May–August, when about 64% of U.S. sightings happen, based on 566 research-grade iNaturalist observations.
Not certain it is a Little Brown Bat? What animal is this? walks through what to check first and the lookalikes that catch people out.
Recent Little Brown Bat sightings near you
Live, research-grade observations from iNaturalist. Allow location to center the map on you.
Spotted a Little Brown Bat?
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