I'm breaking for lunch, so far the acorn mast crop looks poor, squirrel populations are down from years past. Walnuts are small and have little meat inside, the Oaks all look stressed (early color change in leaves).
Hickories are plentiful, some have a smaller or thinner outer hull. These are shriveled and have little meat. The larger hulled ones are well filled and moist (like a fresh nut should be).
As far as the squirrel population, where I normally see 10 or 12 there have been none, or one.