Squirrel birthing and mating season occur twice a year. Squirrel mating season happens once between December and February, then again in late June through August. With the gestation period lasting 38 to 46 days, female squirrels will give birth in early spring (February through April) or late summer (August/September).

How long do baby squirrels stay in the nest?

After the mother squirrel teaches her brood the rules of survival, most young squirrels leave the nest for good around 10 to 12 weeks of age. Some get extended training and will stay with Mom until the second litter arrives in late summer, usually in August.

How do you know if a squirrel has babies?

Carefully searching your attic for the nest is the most accurate way to be sure. Other ways are to attempt to trap the female and check her for nipples, or Smell around for a strong urine odor in your attic area. But Before six weeks of age, you will probably only hear high pitched noises from the babies.