Austin Bats at the South Congress Bridge

photo by David Brendan Hall, posted Jul. 9, 2018. #1 of 37 photos.

Every night from about March through November, spectators watch as, just before sunset, nearly one and a half million Mexican free-tailed bats – one of the world’s largest colonies of this species – take flight from beneath the South Congress Bridge to feast on insects along Lady Bird Lake.


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