Eastern gray squirrels in Europe are an issue since they have displaced some of the native squirrels there. In 1966, this squirrel was also presented to Vancouver Island in Western Canada in the location of Metchosin, and has actually spread out commonly from there. They are thought about very invasive and also a threat to both the neighborhood community and the indigenous red squirrel. The eastern grey squirrel (Sciurus carolinensis), likewise known as the grey squirrel depending on region, is a tree squirrel in the genus Sciurus. It is belonging to eastern The United States and Canada, where it is the most prodigious and environmentally essential natural forest regenerator.