Clear and cold. The bird app identifies singers I cannot hear: ruby-crowned kinglet, American goldfinch, Canada goose. Ten minutes later, I do hear another lone goose go over, a slight note of panic in its honks.

From sun to gloom to sun again in less than an hour. The vireos, ovenbirds, goldfinches and gnatcatchers chatter on regardless, interrupted only by a great crested flycatcher’s stentorian call.