Juvenile and Adult

  • Vertical pupils
  • Loreal pit on each side of head between eye and nostril
  • Rattle on end of tail (note: may be broken or missing); newborn rattlesnakes have small button on end of tail
  • Broad triangular head and slender neck
  • Ridge lengthwise on each scale (keeled scales)
  • Faded brown blotches run length of the back; smaller spots along sides of body; belly is yellowish
  • Background colour: tan to brown
  • Rattle produces a buzzing sound, when present and shaken

Total length: up to 140 cm

Range

  • Found in drier areas of Alberta's grassland regions, usually in proximity to a river valley or coulee
 

Learn more about the Prairie Rattlesnake


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