Thoreau writes in his journal:
A smart frost in the night, the plowed ground and platforms white with it . . .
I hear the first towhee finch. He says to-wee, to-wee, and another, much farther off than I supposed when I went in search of him, says whip your ch-r-r-r-r-r-r, with a metallic ring. I hear the first catbird also, mewing, and the wood thrush, which still thrills me,—a sound to be heard in a new country,—from one side of a clearing . . .