Desert Duets: Sidewinder Babies Web Page
Sonoran sidewinders give birth in the late summer or early fall. Like all rattlesnakes, their babies are born alive rather than from eggs like other reptiles. Each litter of Sonoran sidewinders can have up to fifteen snakelets, baby snakes.
The babies are born in a burrow and the mother stays with them for seven to ten days. Snakelets are six to eight inches long at birth. Young sidewinders prefer to eat lizards rather than mice.