All the birds were overtly appreciative of food yesterday. Frigid air, frozen ground, hard to find seeds and nuts. I tossed two peanuts onto the path in a quiet corner. Down flew a blue jay, one, not a mob. The nuts got studied, one picked up. The blue jay looked right and left. All safe? Then jay took that nut to the side of the path, into the leaves, looked all around. Safe? Then buried the nut under leaves. Back to the path, took second nut, flew up to a branch and ate. Tossed a third nut and that was also eaten. I've seen the blue jays take multiple nuts to their hidey-holes, but never bury the food for later.