where are squirrels invasive from
The Eastern Gray Squirrel, native to the USA, but considered an invasive species in Western Europe, is driving out the native European Red Squirrel.A prolific and adaptable species, the gray squirrel has been introduced to, and thrives, in several regions of the western United States.he Eastern Gray Squirrel, native to the USA, but considered an invasive species in Western Europe, is driving out the native European Red Squirrel.