Squirrels are usually identified by their soft, dense fur, uniformly colored, gray above and white below. Their tail is bushy at the base, black in the middle and tipped with white. The adult is about 380-525 mm long and weighs 300-713 grams. There is no difference in the colors of the sexes. Young are paler and more grayish than adults. They have a long, graceful and bushy tail (which is used for balance, as a parachute, or to protect the animal from the sun or cold).
Squirrels are diurnal and usually active from early morning to late evening in both summer and winter. Squirrels can really be a nuisance because of their propensity to chew on various edible and inedible objects. They often cause power outages and are known to cause structural damaged because of their tendency to borrow.
The food of gray squirrels is principally nuts, eaten according to the cycle of nut reproduction which generally peaks in the autumn. Squirrels cannot digest cellulose and must rely on foods rich in protein, carbohydrates, and fat.
Squirrels start mating when they are a year old. It takes about six weeks from the time the squirrels mate until the baby squirrels, called kittens, are born. Twice a year, in the spring and at the end of the summer, the female squirrel has two to five kittens.