Northern Prairie Wildlife Research Center
Racers inhabit the sagebrush prairies of western North Dakota and are commonly found near a source of water. They have large eyes which aid them in their pursuit of prey during the day. The diet of racers varies. They feed on small rodents, reptiles, and insects, which are their main food source.
Young racers have a distinctive pattern that slowly fades as they mature. The pattern will change slowly over a three year period to the typical greenish-blue, or gun-metal gray coloration found in fully mature adults.