Pacific Northwest
Reptiles & Amphibians
Click on a picture for a larger view 
Common Gartersnake - Thamnophis sirtalis
Puget Sound Gartersnake - Thamnophis sirtalis pickeringii
(Baird and Girard, 1853)
Dark Blue = range of T. s. pickeringii
Click map to enlarge and see key to other subspecies
Related or Similar Northwest Snakes:
Valley Gartersnake
Red-spotted Gartersnake
Wandering Gartersnake
Northwestern Gartersnake
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| Juvenile, Pierce County, Washington | |||
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| Adult, Pierce County, Washington | |||
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| Adult, Pierce County, Washington | |||
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| Large dark adult with almost no dorsal stripe, Pierce County, Washington | |||
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| Large dark adult with almost no dorsal stripe, Pierce County, Washington | Adult, Pierce County, Washington | ||
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| Adult, Pierce County, Washington | Adult, Pierce County, Washington | Adult, Pierce County, Washington | Adult, Tiger Mtn., King County, Washington |
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| Adult, Pierce County, Washington | Adult, Pierce County, Washington | Adult, Federal Way, King County, Washington |
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| Adult, Pierce County, Washington | Basking adult, Pierce County, Washington | ||
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| Adults, Pierce County, Washington | Adult beginning to shed its skin, which begins at the tip of the nose. © Filip Tkaczyk |
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| Sympatric Gartersnakes | |||
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| Adult Puget Sound Gartersnake (bottom left) from Pierce County, Washington with a dark "nigrescens" morph T. e. vagrans - Wandering Gartersnake (top right) found at the same location. |
Looking at the top of the heads can help to identify these sympatric species: T. sirtalis - Common Gartersnake (Left) has a larger longer head with bigger eyes than T. ordinoides - Northwestern Gartersnake (Right.) © Filip Tkaczyk |
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| Habitat | |||
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| Habitat - grassy clearing in woods near a marsh - Pierce County, Washington |
Habitat, King County, Washington | Habitat, Pierce County, Washington | Habitat, Pierce County, Washington |
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| Adult in habitat, Pierce County, Washington | |||
| Short Videos | |||
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| A large dark Puget Sound Gartersnake in Pierce County Washington. | Looks at several Puget Sound Gartersnakes in Pierce County Washington. | ||
Northwest Reptiles and Amphibians
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