Concord, Mass.
1902.
August 3
  Clear & warm with light W. wind.
  Went to Concord by electrics this morning reaching
Ball's Hill about 10.30 and spending the night at the cabin.
  Walked to the farm in P.M. returning by way of 
Birch Field and Davis's Hill. Strolled to Holden's Hill
after supper. Birds apparently scarce and very silent.
Not a single species singing with any regularity or frequency
but Song Sparrows, Cuckoos (both species) and Quail still in
good voice when heard at all. Two Red-eyed Vireos singing
feebly and brokenly. Heard a Dove coo twice on Pine Ridge
and shortly afterwards saw it flying about in circles over
the trees accompanied by another bird of the same species, 
probably its mate.
Birds still in song
  At evening saw fully 200 Red-wings come into the
bed of wild rice near the entrance to Beaver Dam Lagoon.
They arrived in small flocks and made a great chattering
as they circled over the reeds before alighting.
Red-wing roost.
  The Swifts in the cabin chimney had 2 eggs on 
July 6th and 3 when we next examined it on the 13th.
On the 27th the three eggs were still unhatched but to-day
there were 2 eggs & 1 young bird apparently only a day or
two old. This would indicate a period of incubation of considerably
more than three weeks. We had a hot fire in the cabin on
the afternoon & evening of July 27th. The old birds are apparently
both in the chimney as I am writing this (9 P.M.). Every
few minutes I hear the rubbing sound of their wings &
occasionally their soft, liquid twittering. The young bird
also makes a squeaking outcry every now & then...
Swifts
  No sounds whatever from the marshes after dark this evening.
Frogs & Toads silent.
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