Hi tweeters,
I just acquired a copy of Squirrels of the West, a 1999 publication of
Lone Pine Press by Tamara Hartson. It substantiates the black form of
Eastern Gray Squirrel, which is entirely black, indicating it occurs
naturally probably at least around Calgary [it has been introduced at least
to the Vancouver, B.C. area]. And it pictures the black form of the Eastern
Fox Squirrel, of parts of the southern U.S., with a grayish nose and
underparts.

Bob Sundstrom