The tree sparrow is perhaps the sweetest and most melodious warbler at present and for some days. It is peculiar, too, for singing in concert along the hedgerows, much like a canary, especially in the mornings. Very clear, sweet, melodious notes, between a twitter and a warble, of which it is hard to catch the strain, for you commonly hear many at once . . .

  P.M.—To Clematis Brook via Lee’s with C. [William Ellery Channing] . . .

  Farmer [Jacob Farmer?] told me this morning that he found a baywing’s egg yesterday, dropped in a footpath! I have not seen that bird yet . . .