The sun glimmers through thin clouds and a murk of pollen, gathering strength as it clears the trees. A gray squirrel foraging on the ground dashes for cover at another squirrel’s “bird of prey” alarm. The bird of prey fails to materialize.

Foggy and warm. Two nuthatches at the woods’ edge tangle in mid-air, tumbling a dozen feet before retreating to separate tree trunks. Near the top of the big tulip tree, a gray squirrel is leaping from limb to limb.

Flurries starting in fifteen minutes, says the weather app, and fifteen minutees later the air is full of flakes wandering this way and that, every bit as sentient as AI bots. By the time they stop half an hour later, I’m a snowman. A squirrel carrying a walnut walks right under my chair.

Three or four slow-moving squirrels crowd onto the big tulip tree. But there’s a loner 50 feet away, diving repeatedly into the snow as if unable to locate a buried nut. After a while, he retreats into the canopy to eat black birch seeds.