Bats Under the Congress Avenue Bridge
100 S Congress Ave
Austin TX 78701
Congress Avenue Bridge shelters the largest urban bat colony in North America. Between 750,000 and 1.5 million bats fly out near dusk. Best viewing dates: April-Oct. The Mexican free-tailed bats, which migrate here in April, are very much part of the Austin scene but remember it is typically quite warm to hot and just as the bats are eating mosquitoes, the mosquitoes will feed on the humans.