Breezy and cool—a distinctly autumnal feel, belied by the black walnut trees’ young leaves, not yet full size, light green against the darker forest behind them. My brother the birder hurries past, eyes darting all about.

The sun finally clears the trees at 9:00. A bluebird and a phoebe call back and forth in the yard, an ovenbird and a red-eyed vireo talk over each other in the woods, and in the valley, traffic, a tractor, a train.