Do bats catch insects on their wings?

Bats use a type of "sonar" to locate objects even in the dark (echo-location). A bat makes a high-pitched noise that bounces off objects nearby and the bat hears the echo. By timing how long it takes for the bat to hear the echo, it can calculate how far away it is. When it comes to a flying insect, the bat listens to the echo of it's noises and is able to locate where the insect is. Then it can fly to the insect and catch it - even if it is pitch dark.

Their echolocation consists of tiny beeps, too high-pitched for our ears, and the echoes tell them where bugs are.

Bats are not actually blind! Bats can actually see very well but at night they use echolocation. This process enables bats to emit sounds from their mouths that bounce off objects and allow them to avoid the objects when flying.