The ground squirrel will have any were from 1 to 15 offspring each year depending on the species the food supply and other natural factors. They will have one litter per year, and spend the winter burrowed up underground hibernating. They have a relatively short life span of between a few years to about 6 or so. However due to the amount of young born each year they can quickly overpopulate an area and cause lots of damage if left unmanaged.
These squirrels are very adaptable, with species living in many different habitats.
Some live in grasslands, some live in rocky areas. They are very industrious and are more than willing to set up housekeeping in manmade ditches, fences, rock walls and even in houses if they can gain access.
Tree Squirrels
Tree squirrels are found throughout most of the United States—except the treeless Great Plains and Great Basin areas—and into southern Canada.
There are a variety of species of Tree Squirrels. The Fox Squirrel, the Gray Squirrel, the Red Squirrel. The Flying Squirrel is considered a tree squirrel however there are enough differences that they will have their own section.
The Fox Squirrel
The fox squirrel is largest species of Tree squirrel. They average 18 to 27 inches including the tail, and weight between 1 3/4 to 2 ¼ pounds. Many have a coloring similar to that of the red fox. This is how they obtained their name.