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Bull Snake

(Pituophis catenifer)

Also called gophersnake

Picture of a bullsnake

Area where bullsnakes are found in South Dakota


  • Yellowish body with brown or black blotches that appear as rings near the tail
  • Alternating dark blotches found along each side
  • The belly is cream colored to whitish, with dark spots along its borders
  • A dark mask or line that extends across the head from the angle of the jaws to the eyes
  • Keeled scales
  • Nonvenomous
  • Diet: rodents (including gophers, ground squirrels, and mice), birds and their eggs, and various amphibians
  • Habitat: open grasslands
  • Distribution: counties in the western two thirds of South Dakota