Thamnophis sirtalis

The Common Garter Snake, common and widespread in New Hampshire, is a small striped snake measuring 18-26 inches. It has variable color patterns but typically has 2-3 yellow, brownish, or greenish stripes running vertically down the top and sides of the snake. May also have variable black spots between the stripes. Found in a variety of habitats including woodlands, hillsides, wetlands, backyards, and even urban areas. Will use a variety of cover objects for shelter including rocks, logs, stumps and other debris. Breeding may occur in spring or fall. Ten to 40 live young are born from July to September. Hibernation may be solitary or communal in rock crevices, holes, stumps, or foundations. Information from New Hampshire Fish and Game Department.