Where Are there Bats in the Bay Area?

Insect-eating bats play a huge role in reducing mosquitoes and agricultural pests, so if you like fruits and veggies, you have bats to thank. A single Mexican free-tailed bat that is nursing pups can eat her entire body weight in insects per night. And whether or not you like tequila, bats are responsible for that too. Even bat poop is valuable: their guano makes an excellent natural fertilizer.