Cambridge, Mass.
1909.
May 21
(No 2)
  Cloudy & cold with strong, chill east wind.
  Shortly after reaching Cambridge late this afternoon
I was walking in our garden when I heard an unfamiliar
bird song. It was much like that of a Goldfinch (S. tristis)
but all the notes were higher pitched and less full and
strong. Some of them were very sweet and nearly all were
musical in quality although a few inclined too much to
wiryness to be wholly pleasing. Like the Goldfinch the bird
sang on and on, ceaselessly, for many seconds at a time, but
in rather subdued tones and sometimes sotto voce. He was
evidently very near me, apparently in the Parkmann's apple tree,
but I could not see him. At first I could not imagine
what he might be although I dimly recalled having heard the
same song years ago. At length he interpolated among his other
notes the unmistakable swee-e-e-e of the Pine Linnet & the
mystery was solved. He sang three times in all.
Character of song