Behavior Will frequently lie motionless. Will often retreat, but if not, it will vibrate its tail and strike with a wide open mouth. Bites are seldom fatal to humans but poison does kill prey. Gregarious especially in the fall when they join with other snake species in dens for hibernation. Reproduction Mating usually occurs in the spring.
Appearance is similar to that of an adult copperhead, but with a yellow tip on the tail.
Diet Mice, frogs, small snakes, insects, and small frogs.