HOW TO; BUILD A BAT HOUSE!!According to Bat Conservation International, a single bat can capture 500 to 1,000 mosquitoes in a single hour! Bats are also interesting because: In many ecosystems, they play a key role in pollinating plants. There are more than 1,000 species of bats in the world! Some bats use echolocation, or high pitched chirps which bounce off objects in front of them, to find their way in the dark.