It is generally inactive or in a state of hibernation from November through February. During the spring the snake prowls in the morning and late afternoon. During summer the snake alternately basks and seeks shade. During the hottest months, the snake becomes nocturnal, seeking mice, voles, gophers, and even cottontail rabbits. This species mate in spring and bear young anytime from August through October.
Baby rattlesnakes are just as poisonous as adult snakes.
If threatened, the rattlesnake may coil, rattle, and raise its upper body, appearing ready to strike while actually backing slowly away with its lower body. However, if surprised, it may lunge up to several feet, striking without any warning behavior whatsoever. Not every strike delivers venom. Regardless, every rattlesnake bite needs medical attention. If the rattlesnake does inject venom into a victim, a variety of symptoms develop.