Crotaphytus nebriusThe Sonoran collared lizard is a species of lizard in the family Crotaphytidae. The species is endemic to the U.S. state of Arizona and the Mexican state of Sonora.DescriptionC. nebrius is a grayish-yellow with grayish-white spots, which are large down the middle of the body, and small on the sides.They are also known for having a set of black stripes on their neck, and may also have red-orange markings on their neck.BehaviorAdults of C. nebrius are primarily active during spring and summer; the juveniles can be active until November.ReproductionC. nebrius is oviparous.PredationA wide variety of animals prey upon this species, including roadrunners, coyotes, bobcats, domestic cats, foxes and raptors.