AUSTIN -- Austin attracts plenty of bat lovers, especially around the Congress Avenue Bridge, but another colony about 70 miles south of here is much bigger!
A new online tool will let you watch those bats anytime you want!
The Bracken Cave in Comal County is home to as many as 20 million Mexican free-tailed bats.
Experts say when their young are born, that number could almost double.
The best viewing is close to sundown when they come out --- or around dawn when they return.