If garter snakes are not the most widely recognized and distributed snake in North America, they are certainly near the top of the list. They can be found across the state in a variety of habitats where they feed on prey such as insects, earthworms, frogs, etc.. Some of you may have noticed that the color seems to vary quite a bit. It might help to know that there are two species of garter snakes native to North Dakota, the common garter snake and the plains garter snake.