See the evening flight of the world's largest urban bat colony which resides under the Ann Richards Congress Avenue Bridge in Austin, Texas.
The Flash List

World's Largest Urban Bat Colony

© The Flash List


World's Largest Urban Bat Colony

Ann Richards Congress Avenue Bridge

Austin, TX 78704

Ann Richards Congress Avenue Bridge (formerly known as Congress Avenue Bridge) crosses over the picturesque Lady Bird Lake and is home to the world's largest urban bat colony which is comprised of Mexican free-tailed bats.  According to Bat Conservation International, between 750,000 and 1.5 million bats reside beneath the road deck in the structure’s concrete gaps from March to October (migration to Mexico occurs during the winter).  Tourists flock to Austin annually to see the bats emerge each evening at dusk, flying eastward to feed themselves.  They can be seen from the bridge, riversides, boats, and grassy knoll public viewing area at 305 South Congress Avenue.


Bat Conservation International

Texas Show Caves

Central Texas, USA

Texas public 'show' caves include: Natural Bridge, Inner Space, Cascade Caverns, Longhorn Caverns, Wonder World, Caverns of Sonora, and Cave Without a Name.

Texas Bat Colonies

Central Texas, USA

Huge bat colonies can be found at: Bracken Bat Cave, Frio Cave, Devil's Sinkhole, Eckert James River Bat Cave Preserve, Old Tunnel State Park, and Ann Richards Congress Avenue Bridge.

Space Center Houston

Houston, Texas, USA

Take an out-of-this-world journey to this unique place on Earth where you can experience space exhibits and NASA's manned space flight program.

© Photo (top) by Daniel Hartwig