1892.
July 26
Concord, Massachusetts.
Mass.
Concord.- A duplicate of yesterday, quite as hot but with
more breeze.
[margin]To Ball's Hill.[/margin]
  To Ball's Hill at 10 A.M. sailing most of the way.
Just above the swimming place I passed three broods
of young Martins (5, 4, and 2 birds respectively) which
were sitting on the topmost dead branches of tall elms and maples
over the river. This habit in the young Martins of
invariably choosing a high perch distinguishes them
from the young of other Swallows. The parents were
flying about & taking food to the young. Once
I saw a young bird fed on wing the parent meeting
and rising with it after the manner of the Eave
Swallow. The young were very noisy uttering, especially
when on wing, a loud, rather musical peu.
[margin]Young Martins[/margin]
  Between the two landings I heard, on my way
down river, only five species of birds (ie singing) viz.
Robins, Song Sparrows, Swamp Sparrows, a Field
Sparrow and several Short-billed Marsh Wrens; but
on my return trip up river late in the afternoon I
added to this list the Yellow Warbler (three individuals),
Red-winged Blackbird (three), Meadow Lark (one),
Red-eyed Vireo, and Indigo Bird.
  At Davis's Hill, where I spent several hours fighting
the fire which had again started & was spreading fast,
a Cat bird, Pine Warbler, Black-throated Green Warbler,
Towhee, Wood Pewee, and several Song Sparrows were
singing early in the afternoon when the temperature
was probably at as high a point as it reached
during the day. The Cat bird was not in good
voice but all the others sang freely. I heard a
second Wood Pewee on Ball's Hill.