among mammals, the eastern gray squirrel is by far the most ubiquitous, stealing birdseed from the bird feeders which many locals maintain. chipmunks and small brown rabbits are common, but it is relatively rare to hear of them doing any damage. opossum, raccoons, foxes, coyotes and armadillos are frequently seen. garden and meadow snakes are common; three venomous pit viper snakes (eastern diamondback rattlesnake, water moccasin and copperhead) are indigenous, but reports of bites are rare. many types of frogs, including tree frogs and bullfrogs, are easily heard in early summer, as are cicadas in july and august. black bears occasionally wander down from the mountains, and white-tailed deer are abundant; overpopulated in some areas. homeowners in the outer suburbs are prone to landscaping damage due to scavenging deer.