Bats: You will find when walking around at night that suddenly a creature might fly by, too quickly to be identified. That is more than likely a local bat. They eat fruits and bugs and swoop around at night. Our most common variety is the Mexican free-tailed bat (Tadarida brasiliensis). It is a medium-sized bat and its fur is reddish to dark brown or grey in color. They have broad, black, forward-pointing ears, and wrinkled lips.