62
Concord, Mass.
1913.
Aug. 26
to
Nov. 13
(No. 13)

30. Dendroica castanea. - On the morning of September 5 [September 5, 1913] I saw,
in company with other Warblers flitting about in the top
of the large elm that stands in front of the old barn
at the Farm, an adult [male] Bay-breast [Bay-breasted Warbler] so richly colored
that had the month been May, instead of September, I should
have thought him in full nuptial plumage. For the chestnut
on his breast & flanks appeared to be quite as bright &
widespread as in spring and the blackish markings on
the head, ordinarily characteristic of that season only,
were also conspicuously present. Another adult [male] seen
feeding in gray birches in the Berry Pasture, with some
Black polls [Blackpoll Warbler], later in the afternoon of the 25th [September 25, 1913]
shared brood and solid bars of chestnut on the flanks 
but otherwise was in normal autumnal plumage.
The species was not certainly noted on any other occasion.

31. Dendroica striata. - Arriving on September 4 [September 4, 1913] (when a single young
bird was noted) the Black polls [Blackpoll Warbler] continued to increase
in numbers up to the 24th [September 24, 1913] when, during a walk from
the Farm to Ball's Hill, Mr. Dryton & I saw not less
than 200 of them. On the following day they were perhaps
half as numerous. After that they gradually decreased the
last (2 birds) being seen on October 6 [October 6, 1913]. During the
two days of greatest abundance they were so
universally distributed through woods, thickets, orchards
and shade trees about houses that wherever one went
they were almost constantly in sight or hearing. Even
in the depths of extensive pine woods there were troops
of them drifting to & fro with soft chirping calling. But
by far the larger numbers resorted to gray birch covers
to feed on the Aphidae swarming there, as usual at this season.
Once or twice I heard the listless song, given faintly.