North American Racer
North American RacerNorth American RacerNorth American RacerNorth American Racer

North American Racer

Coluber constrictor

Least ConcernNear ThreatenedVulnerableEndangeredCritically Endangered
Insufficient data
overall probability at Yellowstone National Park
2 Verified records at Yellowstone National Park
☀️ Diurnal When it's active during daytime hours (6am–6pm)

The eastern racer, or North American racer (Coluber constrictor), is a species of nonvenomous snake in the subfamily Colubrinae of the family Colubridae. The species is native to North America and Central America. Eleven subspecies, including the nominotypical subspecies, are recognized, which as a group are commonly referred to as the eastern racers. The species is monotypic in the genus Coluber. Wikipedia →

Closest Relatives at Yellowstone National Park

Western Terrestrial Garter Snake
LC

Western Terrestrial Garter Snake

☀️ Diurnal Reptile

Thamnophis elegans

20–30% · Possible
Gopher Snake
LC Endemic

Gopher Snake

☀️🌙 Day & Night Reptile

Pituophis catenifer

20–30% · Possible
Common Garter Snake
LC Endemic

Common Garter Snake

☀️ Diurnal Reptile

Thamnophis sirtalis

Insufficient data

📅 Monthly Probability

📊

Fewer than 5 records of North American Racer at Yellowstone National Park — not enough to chart months honestly.

☀️ When They're Spotted

Most active during daytime hours (6am–6pm) · across all parks (global)

☀️Diurnal
☀️🌙🌙12am6am12pm6pm12am

Global Distribution

Where this species is recorded worldwide. Restricted to human observations from 2019 onwards — the same kind of record and the same period the probabilities on this page are built from, so collar-tracking studies, camera-trap arrays and museum specimens are excluded. Around Santa Rosa that removes 5,924 GPS fixes from a handful of tagged jaguars.

where this species is recorded (GBIF density — it tracks where observers go, not how likely a sighting is)  ·  parks where it occurs — tap a pin for the sighting probability there

Parks Where Found

# Park Country Probability
1 Badlands National Park 🇺🇸 United States
30–40%
2 Congaree National Park 🇺🇸 United States
30–40%
3 Big Cypress National Preserve 🇺🇸 United States
30–40%
4 Everglades National Park 🇺🇸 United States
20–30%
5 Shenandoah National Park 🇺🇸 United States
10–20%
6 Great Smoky Mountains National Park 🇺🇸 United States
10–20%
7 Point Pelee National Park 🇨🇦 Canada
10–20%
8 Redwood National Park 🇺🇸 United States
5–10%
9 Yosemite National Park 🇺🇸 United States
<5%
10 Sequoia and Kings Canyon National Parks 🇺🇸 United States
<5%
11 Cumbres de Monterrey National Park 🇲🇽 Mexico
<5%
12 Channel Islands National Park 🇺🇸 United States
<5%
13 Yellowstone National Park 🇺🇸 United States
Insufficient data
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