I saw a black phase gray squirrel with a red tail one day when I was deer hunting. I could have killed it with my .30-30 but what would have been the point in that ? Just so I could say I once killed a black squirrel with a red tail and maybe take a pic of what was left ? Seems like a waste to me. I went back the next day with a .22 and killed it. It hangs in the living room today.
