A giant colony of Mexican Free-tailed bats moved into an Austin, Texas bridge in the 1980’s after a reconstruction project created an ideal roosting habitat…When the city threatened to exterminate the bats, a zealous conservationist named Merlin Tuttle stepped in and fought to save them. Tuttle, a bat researcher at a Milwaukee museum, moved to Austin, which he called the epicenter of “worldwide bad bat publicity”, and founded Bat Conservation International to promote a positive image of bats.” thevideoproject.com