Thoreau writes in his journal:
Has been a dew, which wets the feet, and I see a very thin fog over the low ground, the first fog, which must be owing to the warm weather. Heard a robin singing powerfully an hour ago, and song sparrows, and the cocks. No peeping frogs in the morning, or rarely . . .
I would fain see the sun as a moon, more weird. The sun now rises in a rosaceous amber. Methinks the birds sing more some mornings than others, when I cannot see the reason. I smell the damp path, and derive vigor from the earthy scent between Potter’s and Hayden’s . . .
P.M.—To Nawshawtuct.
The vireo comes with warm weather, midwife to the leaves of the elms. I see little ant-hills in the path, already raised How long have they been? The first small pewee sings now che-vet, or rather chirrups chevet, tche-vet—a rather delicate bird with a large head and two white bars on wings. The first summer yellowbirds on the willow causeway. The birds I have lately mentioned come not singly, as the earliest, but all at once, i.e. many yellowbirds all over town. Now I remember the yellowbird comes when the willows begin to leave out. (And the small pewee on the willows also.) So yellow. They bring summer with them and the sun, tche-tche-tchc-tcha tch.a-tchar . . .