"Red squirrel" = pine squirrel around here.
That is kinda what I thought. Different locations have different names for critters. Here in the Ozarks, there are greys and fox squirrels. If a feller said he killed some red squirrels all of us hillbillies would assume you are talking about fox squirrels. If you said you saw a mountain boomer that would be a collared lizard. Around here collared lizards are known as "mountain boomers" or "glade bitches."