Puget Sound garter snake
(Thamnophis sirtalis pickeringii)
What they look like
The Puget Sound garter snake has a black upper side, an underside that varies from blue to lime green, and sides in-between that have a pattern of both black and its underside color.
Where they live
Found exclusively in the Puget Sound area of Washington.
What they eat
Puget Sound garter snakes feed on fish, slugs, worms, tadpoles, frogs, and occasionally small rodents.
Between late July and October, females give live birth to 12 to 40 young.
Cool Biology Facts
Common garter snakes (Thamnophis sirtalis) are the second-most commonly encountered snakes in Washington.
Common garter snakes (Thamnophis sirtalis) are considered “least concern” due to their extremely large distribution and large stable populations.