1906
Sept. 12
  Forenoon cloudy; most of afternoon clear. Very warm & sultry all day.
Wind S.W.
 Yesterday was an off day for birds. We saw very few of
them anywhere. Evidently the heavy flights of the 9th & 10 passed
quickly on. Another & rather considerable wave arrived last
night. It was composed almost entirely of Black-polls. We
saw or heard them nearly everywhere. In the morning they
were scattered & exceedingly restless. We repeatedly saw them 
rise high in air and fly off over the woods towards the south
as if starting on migration. Migrants of other kinds were noted
moving south. About 9 A.M. three Chimney Swifts & a Barn Swallow
passed over the farm house with a dozen or more Black polls
streaming after them.
  Just before noon as H.W. Henshaw & I were standing
in the garden at the rear of the farm house we heard twice,
at first rather faintly but the second time loud & clear, and
apparently coming from directly overhead, the unmistakeable
flight call of a Golden Plover - the double, rolling note
falsetto in tone yet distinctly musical or, at least, very
pleasing to the ear, especially of an old sportsman. It
may be written crir-e. The bird seemed to be flying
southward & at no great height but we could not see it.
The sky was filled with low-scudding billowy clouds
at the time.
  In the early afternoon we found about fifty
Warblers among the gray birches in Birch Field.
All that we identified save two were Black-polls. One
of the exceptions was a Chestnut-sided Warbler, 
the other an Oven bird.