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(Coluber constrictor)

Picture of an eastern yellow-bellied racer

Picture of a juvenile eastern yellow-bellied racer

Area where racer snake is found in South Dakota


  • Known as the "blue racer" to many people
  • The adult snake has solid blue to greenish colored back with a cream to bright yellow belly, with no pattern on back or belly
  • Young racers have dark blotches along the back with spotted sides and scattered dark speckles on belly. As they grow older (2-3 years), this coloration changes with skin shedding to the solid adult coloration
  • Smooth scales
  • Nonvenomous
  • Diet: small mammals, birds and their eggs, amphibians, and insects
  • Habitat: open grassland, pasture, and prairie areas
  • Distribution: in the counties adjacent to the Missouri River and all counties in western South Dakota