Bats emerge from Austin Bridge

Discussion in 'Birds' started by SteveK, Apr 6, 2007.

  1. SteveK


    Mar 16, 2005
    In an effort to photograph the greatest concentrations of critters around, I spent a month in Texas working on bats. Just north of San Antonio, is a cave called Bracken Cave where 20-30 million Mexican Free-tailed bats come, making it the greatest concentration of mammals on the earth. All the caves in Texas/New Mexico of Mexican Free-tail bats are places where the females come to give birth to a single pup (males stay in Mexico). Prior to oil, bat guano was one of the largest exports from Texas.

    The bridge in Austin is famous for having the largest urban colony of Mexican Free-tail bats (1-1.5 Million). People line up on the bridge to watch the daily emergence. The bats feed on migratory insects, most of which are agricultural pests (beetles and moths). The bats are very fast flyers (up to 60 MPH) and will venture out as much as 100 miles from the cave to feed, feeding at altitudes up to 10,000 feet.

  2. Wow, that must have been really something to watch!!! Bats are such wonderful creatures, and have been given a bum rap thanks to the movie industry :eek: Great capture, Steve.

    I can attest to the benefits of bat guano - wouldn't want to be a harvester though! :biggrin:
  3. Gale


    Jan 26, 2005
    Viera Fl
    Wow what an image
    Such a sight to see.
  4. Glacier


    Jan 17, 2006
    Boaz, Alabama
    As always a great education to go along with a great image! 10,000 feet? Amazing.
  5. Very interesting Steve, like the photo and love all the info! :smile:
  6. eng45ine


    May 11, 2005
    Chicago, IL
    Great catch Steve. Delightful colors and the composition makes for an interesting capture.