Concord, Mass.
1902. 
August 4
  Clear and warm with light west wind.
  Spent the early part of the morning at Ball's Hill
returning to Cambridge late in the forenoon.
  The only bird singing near the cabin at sunrise was
a Red-eye. He was in nearly full voice and I heard him
at frequent intervals up to 9 A.M. From 8 to 9 A.M. a
Song Sparrow sang vigorously and well at regular intervals.
A Robin, also, was in full song for about fifteen minutes
shortly after seven A.M.
Birds in song.
  I am nearly certain that I heard a Canada Nuthatch
in the pines on top of Ball's Hill this morning.
Canada Nuthatch(?)
  The cawing of Crows was an almost constant sound
through the early morning. The birds seemed to be scattered
about everywhere. They have not been so noisy before
since the early spring.
Crows Exceptionally noisy
  After I went to bed last night I heard the tunging
of Green Frogs at wide intervals. The Bull Frogs
seem to have become wholly silent.
Green Frogs.
Bull Frogs silent.
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