The Brazilian Free-tailed Bat forms the largest known mammal aggregations on Earth, with Bracken Cave in Texas hosting up to 20 million individuals. It is among the fastest bats in North America, capable of reaching 100 mph in level flight, and migrates hundreds of miles between summer and winter roosts. A single colony can consume 200 tons of insects per night, providing enormous agricultural pest-control services.
Best time to see a Brazilian Free-tailed Bat
The best time to see a Brazilian Free-tailed Bat is March–August, when about 63% of U.S. sightings happen, based on 4,174 research-grade iNaturalist observations.
Not certain it is a Brazilian Free-tailed Bat? What animal is this? walks through what to check first and the lookalikes that catch people out.
Recent Brazilian Free-tailed Bat sightings near you
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