Reptile · GBIF taxon 6161776
Coluber constrictor
coluber constrictorAlso known as North American Racer, Black Racer, Blue Racer, Yellow-bellied Racer
Eastern racers are active, visual hunters that raise their heads above tall grass to scan for prey before launching forward with remarkable speed. Juveniles feature striking blotched patterns that fade into solid dark shades as they reach adulthood. When cornered, these high-strung reptiles rapidly vibrate their tails against dry leaves, producing a buzzing rattle to ward off threats.
DiurnalNon-venomousFast-moving
—observations
—countries
—peak records
Least ConcernConservation statusIUCN Red List categoriesLCNTVUENCREWEXLeast ConcernRed List categories, explained →
Diet & prey
- Small rodents
- Frogs
- Insects
Predators
- Hawks
- Owls
- Coyotes
ThreatsRoad mortality, habitat loss, human persecution
HabitatsFields, meadows, open woodlands, scrublands, brushy edges
Life span10 to 15 years
Size / weightNot available
Classification
- FamilyColubridae
- GenusColuber
- Speciescoluber constrictor
Range data is not available yet.
Interaction riskLow
- Low
- Moderate
- High
- Very high
- Why interaction risk is low
- Non-venomous, but will bite rapidly if cornered or handled; keep a respectful distance.
- Why it is dangerous
- Lacks venom, but possesses sharp recurved teeth and a nervous temperament, biting repeatedly if seized.
- How to recognize a risky encounter
- Look for a slender, uniform dark or bluish body moving extremely fast through open vegetation.
- What to do
- Allow the snake a clear escape route and observe from a distance without attempting capture.
Responsible observation
- Give space: These high-strung snakes stress easily and will strike repeatedly if cornered.
- Watch movement: Observe their characteristic periscope posture as they scan open grassy fields.
- Listen closely: Dry leaf vibrations from their tail tips can sound deceptively like a rattlesnake.
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