All of mine are currently blue/wood. Rem 12c, Rem 582, Win77, Browning SA, Win 9422M, Rossi 62, S&W 41, Single Six.

I believe the grays are more aggressive than the fox squirrels and will displace them. We have them both in my area. Used to be almost all fox squirrels except in really large pieces of timber. Fox squirrels do seem to prefer edges and open woods more but the grays are now very common even in yards.