When the bats come out at night

It’s said that 1.5 million bats inhabit the underside of downtown Austin’s Congress Street Bridge. Every night from spring though fall they take off into the sunset as night arrives, and hordes of people gather to watch. Here’s a video clip and picture I took of them all leaving:

 

Crowds line the bridge both above and below waiting for the bats. 

 
Over a million bats heading down the river.

Stragglers left behind.