Eastern gray squirrels vary in colour from light grey to black. The gray squirrel is an important prey species for a whole host of predators, including hawks, owls, snakes and foxes. The short answer is black squirrels originate from the same place grey squirrels do; they are indigenous to the Americas, Africa and Eurasia. currently for every red squirrel there are like 66 gray squirrels. It is native to eastern North America. Female eastern gray squirrels usually begin breeding in their second year of life and under exceptional circumstances can give birth to two litters per year, with each litter averaging about 2.5 young. Eastern grey squirrels live in trees, where they create two types of homes. They are the same as gray squirrels and may have brothers and sisters that are gray. During the summer, they make a nest of leaves and twigs (called a dray) in the fork of a branch. Grey squirrels (Scirius caroliniensis) are native to North America and were first released in the UK in 1876 in Henbury Park, Cheshire. Black squirrels climb trees just like gray squirrels do. Scientific name: Sciurus carolinensis Common name: Eastern gray squirrel The eastern gray squirrel is a very common, North American, tree dwelling rodent. The eastern grey squirrel is native to southern New Brunswick, Quebec, and Ontario, as well as some areas of Manitoba and Saskatchewan. Their round foreprints are 1 inch long, while their triangular hind prints are 2 and 1/4 inches long. Well-known for their bright eyes, pert ears and bushy tails, squirrel species have differences that are sometimes less easy to identify. The gray squirrels moved in and now the European Red Squirrel is endangered. In the early 1900s they were introduced to Vancouver’s Stanley Park, where they flourished and are now possibly competing for habitat with the native Douglas squirrels. Their habitat extends throughout the Midwestern United States, in some areas of the Northeastern United States, Canada and also in the United Kingdom.The overall population of black squirrels is small when compared to that of the grey squirrel. The Eastern Gray Squirrel is a tree dwelling rodent, a very common species of squirrels, mostly found in North America. The Eastern grey squirrel (Sciurus carolinensis) may be cute and fuzzy to on-lookers, especially in the popular tourist areas of Stanley Park in Vancouver, but it is an invasive mammal in British Columbia that is ranked by the Invasive Species Specialist Group (ISSG) as one of … Females may have two litters of three to four young a year. In the United States, the eastern gray squirrel is widespread, while the western gray inhabits only areas of Oregon, California and Washington.