Concord, Mass
1902
Oct. 7
  Brilliantly clear and just pleasantly warm with fresh
west wind.
  There were many birds in the woods to-day but not
enough to indicate any considerable migration during the night.
Just after breakfast I found a young Black & Yellow Warbler
flitting about among some dense young pines at the E. end
of Ball's Hill. It was uttering the characteristic finch - like
chirp & this first drew my attention to it.
Black & Yellow Warbler.
  As I was crossing the opening beyond the swamp a 
flock of 22 crows came flying over it from the northward.
Some of them alighted in the tops of the oaks on Davis's Hill,
others scattered about over the flight meadow. I think this
must have been a migrating flight just in from the north.
Migration (?)
Crows arrive
  One of the elms in the area of the farm house appears
to be dying and a Hairy Woodpecker visits it nearly if not
quite every day. He (or rather her) spent an hour or more
there this afternoon, working industriously at a rotten branch.
I seldom see these Woodpeckers in the orchard although
it has plenty of decayed limbs.
Hairy Woodpecker
  In another three that shades the door yard a Solitary
Vireo was singing at 10 A.M. Its notes were so feeble &
broken that I feel sure it was a young bird. I also
heard a Pine Warbler sing once or twice and the cock
Partridge drummed all the forenoon at the foot of the run.
Solitary Vireo
  I found two Field Sparrows among some scrub oaks
on the edge of Green Field and started three Chippies in
the orchard. Gilbert noted six or seven White-throated
Sparrows & two Hermit Thrushes. We also saw a Greebe
in the river off Davis's Hill. I noticed only one Black-poll
to-day. Yellow-rumps are fairly common.
Field Sparrows
Chippies
White thrtd
Sparrows.
Black-poll.
Yellow-rumps.
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