According to experts, Austin is home to the largest urban bat colony in North America. Approximately 1.5 million bats make the Ann Richards Congress Avenue Bridge their home for part of each year.

The Austin Bat Refuge rescued four bats that appeared ... One of the four bats has already been released at the Congress Avenue Bridge and the other rescued bats will test fly Monday night.

That is about 18 million more bats than fly out from Austin’s Congress Avenue Bridge to grab a dinner of insects. “The Congress Avenue Bridge is the largest urban colony of bats. So ...