1906.
May 21
  Brilliantly clear with cool E. wind. Ther. 36 degrees - 64 degrees.
  Yellow-billed Cuckoo. Heard full song in orchard 11 A.M.
Arrival
  The only North-bound migrants noted to-day were a
male Usnea Warbler in full song, a male Yellow rump in full song, 3 male Black & Yellow Warblers in full song,
a male Black-poll in full song, 2 male Blackburnian Warblers in full song, and 4 White-throated
Sparrows. Evidently the migration is nearing its end.
  Purdie and I went to Lawrence's pine woods by the
river this forenoon. As we were passing the north western
corner of Green Field we heard, near at hand, the
unmistakeable breeding call of a Sharp shinned Hawk, a
dry kec-kec-kee-kec-kec. It recalls the barking note
of Cooper's Hawk but is feebler and less loud. We
did not see the bird but we found under a pine the
feather of a male Goldfinch which it had probably killed
& in another tree of some kind, not far off, a
fresh looking hawk's nest made of rather fine twigs.
  Purdie spent most of the afternoon in Pulpit Rock
woods looking for the nest of the Broad-winged Hawks.
He saw both birds. The female behaves precisely as when I
watched her on May 10. Purdie says that he tried in
vain to make her leave her perch which was in a
small oak within a few rods of where I saw
her on the 10th. She screamed at him incessantly
but would not fly. There must be a nest in these
woods but Purdie is not sure that he found it
although he thinks he has.