1902.
June 2
  Clear and warm with fresh W. wind.
  Crossing the river at about 9 A.M. I landed at
the stone boat house and was walking rapidly through 
the swampy woods immediately behind it when my attention
was attracted by a variety of odd notes which evidently
came from the top of a leafy oak that overhung the cart
path some thirty yards ahead. First there would be a short,
full whistle, next a gurgling sound as of water escaping from
the neck of a bottle, next a succession of clucks or of short
choking or gasping cries, finally one or more rich, liquid &
really musical notes. These sounds were given in a connected
series but they were usually separated by intervals of a second
or two and their author would frequently cease uttering them
for a minute or more and then begin again. I had
about come to the conclusion that I was listening to
the voice of one escaped Parrot when a ragged old Crow
with two or three primaries missing from each wing
started from the oak and flew off over Arnold's pasture.
I remember hearing (as well as seeing) a Blue Jay indulge
in a closely similar performance near the cabin a year
or two ago.
A musical Crow
  I went to Concord by the electric cars this morning &
rowed Mr. and Mrs. John E. Thayer down river from Nashawtuck
Bridge to Ball's Hill. We saw very few Bobolinks, certainly
not more than three or four in all.
  There is an immense colony of Sand Swallows in a
bank opposite the Catholic Cemetery on the Bedford road certainly
more than 100 pairs to judge by the number of holes.
5