Monday, noon: busy morning at feeders and water pan. When not flying, most of the birds were puffed up, feathers fluffed to conserve body heat. Suet feeders popular today. Also some romancing by a pair of Gray Squirrels that have unfortunately taken up residence in a cavity they dug in the remains of an old willow tree in our yard. When we noticed the hole we thought perhaps it was Pileated Woodpeckers. How nice that would be. How not nice to have prospect of more squirrels. It's interesting, however, to watch their interplay. Lots of touching going on. Photo quality not the best as photos were taken through two panes of window glass. White-breasted Nuthatch, Downy Woodpecker, and Gray Squirrels below.