1903.
May 4
  Cloudy with light rain in A.M. Wind N.E. but not
strong and soft rather then chilly.
  Birds sang almost unceasingly through the entire day.
The most prominent voices were those of the Robin,
Field sparrow, Grass Finch, Black & White Creeper, Pine
Warbler & Black-throated Green Warbler. I also heard 
a Meadow Lark faintly but distinctly in the direction
of the spring in Lawrence's great meadow. A Purple Finch
sang beautifully near the house in the early morning
and a Solitary Vireo was singing all day long in the
woods near Pulpit Rock. The only arrivals noted were
the Nashville Warbler (1 male in full song) and Least Flycatcher (1 in full song).
  A Downy was at work all the afternoon excavating
a nest in a dead branch of an apple tree just behind
the house. He has already carried it down out of sight
and has strewn the ground beneath with his chips.
Although the nest is not over ten feet up the bird
worked on unceasingly while one of the men was spading
a piece of the garden within a few yards of the foot 
of the tree  
  I saw the male Cooper's Hawk skimming over the orchard
this forenoon & later heard either him or his mate
cackle once but both birds are comparatively silent now.
I think they are nesting where they spent so much
of their time last month. Indeed I saw what looked
like their nest there yesterday.
  About thirty Robins went to roost this evening in the
Barrett Run, some in maples, others in pines.
  Saw six small bats flying in quick succession from our
shed at 7 P.M. There were none there when I last looked
on April 11th.