A guy I know was feeding the squirrels an ear of corn everyday in about a half dozen spots. When the snow got deep around the end of Jan., he stopped. Do you think the squirrels still knew enough to stash some for a wintery day or did they just pig out and are very skinny now?
I have a ton of gray and black squirrels in the woods surrounding my property. I see several everyday and they look pretty fat and happy to me. No one is feeding them that I know of so they must have stashed plenty of chow this year. It's interesting to me that I saw them out running around on even the coldest mornings (-10). They're doing fine.
They run around and breed around late January into Febuary. That is the squirrel rut. Won't be long and there will be little ones in the nest. Lots of hollow trees in the woods to stash nuts if they can't dig into the ground. If you had squirrel dogs you would notice the trees with holes in the a lot more than you would otherwise. What JRM said.