1902.
May 9
  Brilliantly clear with north west wind which blew
a living gale from about 9 A.M. to 5 P.M. Looking
Southward from the farm house I could see clouds of
dust picked up by the wind from the sandy fields beyond
the Fitchburg Station in Concord driving ceaselessly athwart
the green slopes of Fairhaven Hill. That is very unusual
for a cloudless day as this season the temperature fell
steadily from about noon to sundown. At evening the
air seemed almost frosty.
  The only arrival noted to-day was a Water Thrush
which was singing across the river at sunrise and later
(I assume that it was the same bird but it may have
been another) in front of the cabin.
Arrivals.
  Birds of all kinds sang freely up to about eight
o'clock after which the wind silenced most of them for
the remainder of the day. They were congregating in
great numbers in the sheltered swamp behind Ball's Hill
when I passed it on my way to the farm shortly after
breakfast. So far as I could discern the respective
numbers of the various species present have not changed
since yesterday. Indeed the counts which I made on
both mornings came out almost exactly the same for
nearly all the different birds.
  I have heard no Field Sparrows for several days
and had begun to suspect that all have left this
neighborhood but I found a pair in Birch Field this
afternoon. When one flew the other followed it closely
making that peculiar low cheeping sound peculiar to this species.
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