Bats of the Congress Avenue Bridge

DOWNTOWN. Between March and November, more than a million-and-a-half free-tail bats spend their summer days under this prominent bridge (whose structure facilitates their habitats) and come out in the darkness to catch and eat thousands of pounds of insects nightly. It's quite an awe-inspiring spectacle to behold and can take all the bats more than a half-hour to take flight at times of heaviest concentration. The best time to catch sight is around 8:30pm.