Thoreau writes in his journal:
A woodcock starts up with whistling sound.
I have been struck of late with the prominence of the Viburnum nudism leaf in the swamps . . .
I see an oak shoot (or sprout) already grown ten inches, when the buds of oaks and of most trees are but just burst generally. You are surprised to see such a sudden and rapid development when you had but just begun to think of renewed life, not yet of growth . . .