They are the only nocturnal and gliding North American squirrel. They glide by extending the fold of skin on each side of its body and leaping from branch to branch or ground. They can glide more than 260 feet and move quickly from tree to tree to forage or escape predators. During the days, flying squirrels den in hollow trees and cavities made by woodpeckers. As many as 20 squirrels may den together to increase heat retention.
Females are territorial during summer and exclude other squirrels of both sexes form their area.
Reproduction One to six young are born twice a year after a gestation of 40 days. Lifespan 4-5 years in the wild. 8-13 years in captivity. Diet Nuts, seeds, berries, fruits, moths, June bugs, bark, eggs, and young birds.