Many more rabies cases can be attributed to dogs, cats and raccoons than to bats. You are most likely to see bats swirling around a streetlight as they devour your local mosquito population. Bats are the only major predator of night-flying inects. Bats feed at night, catching insects such as moths, flying beetles, and mosquitoes. They use ultrasonic sound to locate insects.
Bats send a high frequency sound that bounces off objects.
They hear these echoes and locate, identify, and capture moving prey while flying through the dark. This process is called echolocation. Echolocation helps them navigate through the cave in total darkness. These large ears help them hear these echoes.