The Big Brown Bat is one of the most widespread and recognizable bats in North America, with a large, robust body and glossy brown fur. It is a flexible roost-site generalist, using buildings, tree cavities, and rock crevices. Big brown bats consume enormous numbers of pest insects nightly, including cucumber beetles and codling moths that damage crops.
Best time to see a Big Brown Bat
The best time to see a Big Brown Bat is April–August, when about 64% of U.S. sightings happen, based on 6,238 research-grade iNaturalist observations.
Not certain it is a Big Brown Bat? What animal is this? walks through what to check first and the lookalikes that catch people out.
Recent Big Brown Bat sightings near you
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