The Brazilian free-tailed bat Tadarida brasiliensis has short fur that varies in color from dark brown to grayish-brown and are insectivores that prey on Feeds on moths, flies and beetles.
Like other members of the Molossidae family they have a very sturdy tail that sticks out about half their length beyond the short tail membrane.
The Brazilian free tailed bat is a very common bat species found in large numbers all over the southern half of the United States and is considered in Florida to be the most common bat observed on a regular basis.
Probably the best known roost of this bat species is at Carlsbad Caverns, New Mexico soon after sunset funnel shaped clouds of these bats exit their roosts at speeds of 35-60 mph and fly more then 60 miles away each night.
They have a scent gland that emits a musky odor. A colony of these bats can be recognized from a distance by their odor alone. The odor is often mistakenly thought to come from their bat guano. Females give birth to a single pup, in early June.