The Brazilian free-tailed bat is a medium-sized bat known for its long, narrow wings and distinctive tail that extends beyond its tail membrane. This species is found throughout the Americas, from the southern United States to Argentina. They are highly social and often roost in large colonies in caves, buildings, and other structures. These bats are nocturnal and primarily feed on insects, using echolocation to navigate and hunt in the dark. Their ability to fly at high speeds makes them effective predators, and they play an important role in controlling insect populations in their ecosystems.