Squirrels are usually born in early spring with the average litter being four. If food is abundant, a Mamma Squirrel may have a second litter in mid summer.A female Squirrel will look for the strongest male to be the Father and will usually not mate with the same male again in hopes of keeping her species strong.
Mating season begins in late winter, this is when Squirrel is most active. Males chase and court the females and will chase off other males.
The average gestation period is 33-35 days for smaller squirrels and 55-60 days for the larger fox and greys.
Babies are born with no fur or teeth and their eyes closed. Their eyes begin to open at about six weeks.
Squirrels are solitary but will allow others into their den if it is extremely cold. Once the weather warms, the "guests" are encouraged to leave.
During the summer, Squirrel is most active for a few hours after sunrise and then again for a few hours before sunset. They rest during the day and throughout the night rarely leaving their nest after dark.
Squirrel does not hibernate but will stay in his nest if the weather is extreme.
Squirrel's diet consists of seed, nuts and berries and fruits. Squirrel will chew on small tree branches to clean and sharpen his teeth. Squirrel's teeth grow continually to compensate for wear.
It is believed that Squirrel communicates with others of his species thru different chirping sounds.