Scientific Name: Crotalus horridusClassification: State Listed as Special ConcernPhoto Credits: Richard BarlettTimber rattlesnakes are ambush predators that feed primarily on rodents. They are venomous and are most common in the mountains and Coastal Plain. These heavy-bodied snakes are characterized by dark crossbands or chevrons on a lighter background. Timber rattlesnakes inhabit forested areas, and in the mountains, they will often hibernate together in large numbers.