The western version of the pine/red squirrel (chickoree) is Tamiascurus Douglasii). http://en.wikipedia.org/wiki/Douglas_Squirrel They are brazen little buggers that will sit up in a tree and cuss you out for disturbing their lawful occasions. Cute though. The Mt. Graham red squirrel is an endangered subspecies of T. Douglasii here in Arizona that is confined to one particular sky-island mountain range.