Eastern Gray Squirrels in Northern Idaho?

I was curious about the range of the Eastern Gray Squirrel in Northern Idaho because I have spotted them in Coeur d' Alene and Sandpoint on a regular basis. Am I confusing them with the Fox Squirrel? If there is Gray Squirrels, what is their preferred habitat and how would they fare in open Ponderosa/Douglas Fir woodlands? thanks.
Answer: 
Eastern Gray Squirrels do occur in Idaho, but are considered to be an exotic species: http://explorer.natureserve.org/servlet/NatureServe?sourceTemplate=tabul... We do not actually have any data on this species in our IDFG database though. Please consider reporting your sighting of this species on our Observations website: https://fishandgame.idaho.gov/species/observations/ Thank you!
Answered on: 
Tuesday, April 29, 2014 - 12:37 PM MDT