Bats are the same way.
They love to eat insects, the way you probably love cookies or ice cream. A million of these bats can gobble up nearly 10 tons of insects in just one night. He knows that bats and moths typically fly in the air at about the same altitude. In early June, billions of corn earworm moths emerge from the Lower Rio Grande Valley along the border of Texas and Mexico. Some moths feed on cotton after feasting on southern corn, while others travel northward to gobble their way through midwestern corn, cotton, and other field crops.