Concord, Mass.
Ball's Hill
1900.
May 16
  Clear with light S.W. wind falling cooler before sunset.
Ther: 54 degrees - 73 degrees, A perfect May day.
  To-day must surely mark the high-water level
of the extraordinary migration of May, 1900. I do
not think that I have ever before seen so many
small birds in one day in the Concord woods. They
have been so evenly distributed that it really made
not the slightest difference when one looked for
them. As the eye ranged through the trees &            
undergrowth it was constantly arrested by the fluttering
of wings or the flashing reds, yellows, blacks & grays
of the innumerable Warblers that were briefly engaged
in gleaning for food among the branches. 
Apparent
high water
mark of
an extror-
dinary bird
migration.
Woods &
thickets
swarming
with Warblers
  Thayer & I were out early & late. In the morning
& afternoon we visited the farm when the old
apple orchard was in fullest bloom and fairly
singing with the songs of Orioles & Grosbeaks.
We also ranged repeatedly about Ball's Hill &
in the late afternoon we walked to Holden's Hill.
Everywhere we went it was the same story: - 
birds almost too numerous to count or even
estimate. Perhaps the most numerous of all the
less common birds were the Wilson's Black caps
and Canadian Warblers. It was a particularly
"great day" for them. Rather curiously, however,
we saw no species which had not 
been previously entered on this person's list.
The White-crowned Sparrow & the two Lincoln's Finches
still linger at the cabin & we heard another White-
crown singing in the orchard at the farm.
Visit to
the Farm.
to
Holden's H
Everywhere
myriads of
little birds.
Wilson's &
Canada Warblers
White cr. Sp.
Lincoln's F.
78