Cambridge, Mass.
1907
April 14
  Clear and cool with light W. wind.
  Two Pine Linnets have been haunting our
garden for the past week or more. I found them
in the deciduous trees in the "jungle" this morning. One
of them sang almost continuously for fifteen or twenty
minutes, sometimes sotto voce, sometimes in fairly loud
tones. Its song was an odd medley of halting, stuttering
notes, many of them harsh and only one really
musical, the exception being the canary-like pee-ee.
used in common by the present species, by the Goldfinch
and by the Redpoll. This call was frequently interpolated
among the other notes as was the peculiar,
buzzy scree e e e e e e e or scree e e e e e eep which
one hears more or less at all seasons but chiefly
in spring and summer and which I take to be
one of the forms of song rather than a new call.
The shorter yet somewhat similar creep, which is
certainly a flight call, was also given among the
other notes & intermingled with them.
Spring song of the Pine Linnet
  The medley singing, heard on this occasion, is
often indulged in by the Pine Linnet at this season.
It is similar in form and general character to that
practised by one Goldfinch in early spring but, unlike
that of the latter, it is, as I have just said almost
wholly lacking in sometimes and musical merit.