Youper, we had them in the attic of our old house prior to some renovations to keep the weather out (newaygo county). At first I thought they were just small reds until I shot some.
I trapped & released the survivors with a live trap. That was quite a while back and I haven't seen any since--but unless you see one gliding in the evening, it may be a tough call.
the DNR lists them as a "northern flying squirrel"
DNR Squirrels
