Every summer night hundreds of people come to watch thousands of bats flying from under a bridge in Austin, Texas.
The town's biggest colony, which gathers up to 1.5 million Mexican bats every summer, lives under the Congress Avenue Bridge.
Every summer night hundreds of people come to watch thousands of bats flying from under a bridge in Austin, Texas.
The town's biggest colony, which gathers up to 1.5 million Mexican bats every summer, lives under the Congress Avenue Bridge.