This rattlesnake, like other snakes, is cold-blooded. This means it relies on the sun to raise its body temperature and provide energy. Because of this, it is less active in colder months and spends much of its time hibernating or basking in the sun during the late autumn, winter and early spring.
They use their venom to subdue small mammals including prairie dogs, mice, rats, squirrels, and rabbits including the American desert hare. They also eat small reptiles, amphibians and birds. The rattlesnake is not without predators of its own, and it may find itself preyed upon by hawks, eagles, roadrunners, hogs and even other snakes!
They will use their venomous bite to defend against predators. Their rattle is designed to ward off aggressors or any creature that gets too close, and if that does not work, the snake will strike using its fangs.