Shannon B.
Yelp
There are many wonderful things about our little blueberry here in the heart of the Lone Star State and our local seasonal, urban freetailed bat colony must be in the top 10. I am reminded of our special flying friends every time I run on the Butler Trail (aka Town Lake Trail) and cross under Congress Avenue, where the scent of guano and the sounds of chirping bats are unmistakable. During the summer, when my run is timed just right with the sunrise, I even get to see them returning to their nests in the crevices under the bridge.
In general, the bats are here from around March to November and come out in massive waves of 1000s at dusk to devour insects each evening. They're especially active in the summer, and we even have a festival to celebrate them in August. http://www.roadwayevents.com/event/bat-fest/ (2018 - see https://www.yelp.com/events/austin-bat-fest-2).
To find out *exactly* when the bats are in town & what time to expect them to make a show, check this website http://www.batcon.org/our-work/regions/usa-canada/protect-mega-populations/cab-intro/cab-emergence-times or call 512-327-9721 (or 1-800-538-BATS) and follow the prompts. The bats are only here during the warmest parts of the year and when it gets too cold, they fly to their winter vacation home in Mexico. Don't be mad if you didn't check the facts before you drove all the way over here and paid a pretty penny to park!
In the summer months, be sure to wear insect repellent. The bats come out for mosquitos, and the mosquitos are here for you!
Never touch a bat if you see one on the ground. If it's on the ground, it's sick and you need to stay away. Sick bats may have rabies.
There are several ways to take in this glorious site, some free, some for a fee. If you're a cheapskate like I am, then park in the free lot or on the street somewhere a few blocks away and jog over to the Austin American Statesman parking lot to chill out on the lawn with the other gawkers. Lots of folks like to just stand on the bridge or its sister bridge on South 1st to take in the view from there. The outdoor terraces on the 5th and 6th floors of the new Austin Central Library might be good, too. If you want to get fancy, you can buy tickets for one of the lake cruise boats and ride in style (with a covering over your head) to take in the bats via the water. Others use their own kayaks or rent another personal watercraft for the event.
See also:
http://www.batsinaustin.com/
http://www.roadwayevents.com/event/bat-fest/