Northwestern Garter Snake

Northwestern Garter Snake

Thamnophis ordinoides

Silhouette: Alex Slavenko · PhyloPic

Least ConcernNear ThreatenedVulnerableEndangeredCritically Endangered
Daily sighting probability ~20% · Possible
at Redwood National Park
31 Verified sightings at Redwood National Park From 2019 to 2026
551 Verified sightings across all 4 parks From 2019 to 2026
June Best month highest sighting rate
☀️ Diurnal When it's spotted during daytime hours (6am–6pm)

About the Northwestern Garter Snake

The northwestern garter snake (Thamnophis ordinoides) is a species of snake in the family Colubridae. The species is endemic to North America. In the United States, T. ordinoides is found in California, Oregon, and Washington; in Canada, it is found in British Columbia.

The northwestern garter snake is small, with adults averaging around 13–38 in (33–97 cm) in total length (including tail). Its color and scale patterns are varied and can include small dark spots. Common vertebral stripe colors are white, yellow, orange, red, green, turquoise, and blue.

The northwestern garter snake is primarily found on the edges of meadows surrounded by forest, as the species requires a fair amount of sunlight for its survival. In British Columbia it can also be commonly found near bodies of both freshwater and saltwater, where it hunts small fish and amphibians. In scenarios in which it is too hot outside, these snakes can also be found under stumps and rocks in order to shield themselves from the sunlight.

T. ordinoides preys on slugs, salamanders, and frogs. Baird SF, Girard CF (1852). "Descriptions... Wikipedia →

Global Distribution

Warmer areas are where this animal is recorded most often.

Parks Where Found

# Park Country Daily sighting probability
1 Pacific Rim National Park Reserve 🇨🇦 Canada
~40%
2 Olympic National Park 🇺🇸 United States
~30%
3 Redwood National Park 🇺🇸 United States
~20%
4 Great Bear Rainforest 🇨🇦 Canada
~20%

Quick answers

What are the chances of seeing a Northwestern Garter Snake in Redwood National Park?

About 20% of wildlife watchers report a Northwestern Garter Snake sighting in Redwood National Park, based on 31 verified sightings from GBIF citizen-science data.

When is the best time to see Northwestern Garter Snake in Redwood National Park?

June has the highest sighting rate for Northwestern Garter Snake in Redwood National Park in our monthly data.

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