Overcast and cool. A sudden thumping under the floor, and a small groundhog goes running out into the garden, followed by the head of a larger groundhog, who turns to look at me over the end of the porch. After a minute-long staring contest, she drops out of sight.

Almost all the local marmots appear within the space of a minute: a groundhog pokes its head up beside the porch, a chipmunk is chased out of the black walnut tree beside the road by a gray squirrel, and a red squirrel scolds from the springhouse.