Concord, Mass.
1901
Oct. 12
  Morning densely foggy & most of forenoon cloudy. Afternoon
sunny with thick haze. Cooler with light E. wind.
  At daybreak this morning the Hill was shrouded in the
densest possible fog and the trees were dripping as if just
after a heavy rain. The cawing of a Crow was literally
the only sound that greeted the opening of a new day.
  Up to 8 A.M. the whole surrounding country remained
buried in fog and the woods were as silent as the
grave. Half an hour later the air had cleared somewhat
and I began to hear Warblers chirping and Squirrels
chipping or barking. On my way to the farm at
about this time I heard a Ruby-crowned Kinglet
in Pine Park and a Solitary Vireo on Pine Ridge, both
birds being in nearly full song. Another Vireo was 
singing really ecstatically at the farm later in the
day and in the afternoon I heard a Purple Finch
warbling sotto voce. No doubt the Swamp Sparrows
sang along the river at evening but I was not there
to hear them.
  There were very many birds about the buildings at
the farm all day. When I first got there and before
the fog had lifted I found fifteen or twenty Yellow-
rumped Warblers and as many more Chippies accompanied
by a Phoebe and a Bluebird flitting about in the large
elms. The Yellow-rumps clung to the rough bark and
warbled their way up along the trunks & larger branches
almost like Nuthatches. I also saw half a dozen or
more perched at one time on the ridge pole of the house
while others were clinging to the clapboards with
fluttering wings. They and the Chippies were continually
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