The State of Arizona is home to 28 species of bats, more than almost any other state. Bats are the only true flying mammals and are our valuable human allies. Worldwide, they are the primary predators of vast numbers of insect pests.
 

   While some people appreciate bats and the many ways they benefit us, others have a real fear of bats because a small percentage of them can expose humans and pets to rabies or just because bats appear scary. Bats should always be kept out of places where people or pets live indoors. Bat guano (feces) can present disease and odor problems. However, bats are generally harmless to humans and are extremely beneficial for controlling insects and mosquitoes and pollinating some plants.

   Bats are very vulnerable to disturbances by people because of their roosting habits and slow reproductive rate.

   Bats are protected by Arizona state law, and disturbing a colony of bats where young are present can result in dead bats and large fines. Bats reproduce slowly compared to other small mammals, but their benefits usually outweigh any harm they might cause.

   Bats should never be allowed to remain inside human living areas like attics or the inside of your home, but bats outside away from the home can be tolerated and even encouraged.