If you live within the range of these squirrels, you have probably noticed increased activity this month with them chasing each other and vocalizing. I watched some yesterday chasing each other so quickly around the tree it was surprising they did not lose traction.
The Eastern Gray Squirrel, Sciurus carolinensis, generally mates twice each year. Once in Dec-Feb time frame and again May - June. Litter size is between 1-9 with a general litter size of 2-3. Gestation period is 44 days.
The young begin exploring outside of the nest between day 42-49. By day 56-70, the female weans the young.