78
Concord, Mass.
1913.
Aug. 26
to
Nov. 13
(No. 29) 

71. Habia ludoviciana. - In Sleepy Hollow Cemetery a Grosbeak was
heard clicking on August 29 [August 29, 1913]. Another was heard near
Angus's Mill on September 3 [September 3, 1913]. At the Farm two young
birds appeared together in the big elm in front of the barn
on August 31 [August 31, 1913] and the click note was heard on
September 1 [September 1, 1913], 4 [September 4, 1913] and 21 [September 21, 1913] (on the last named date in Birch Field.)

72. Passerina cyanea. - Up to about the middle of September
there were at least two Indigo Birds haunting thickets
orchard trees and weed patches at the Farm. After the 12th [September 12, 1913]
I noted only one - for the last time on the 27th [September 27, 1913].
At sunset on the 16th [September 16, 1913] I heard the song normally long 
and otherwise finished and complete but given only once
and in subdued tones - exquisitely low and sweet.

Indigo Bird flutters at closed window

Just before noon on the 14th [September 14, 1913] a young bird spent upwards 
of twenty minutes fluttering on the outside of a closed 
window on the ground floor at the rear of our old
farm house, returning to it again and again at short
intervals, never once flying hard at the glass but
beating it so forcibly with its wings that the sound
produced by them, was very distinctly audible within.
Sometimes it would perch for a moment on the sash
and strike a pane repeatedly with its bill, making a
loud tapping noise. About 1 P.M. it appeared at
a window (also of the lower storey) at the front
of the house where it fluttered and tapped as
before but only for two or three minutes.

73. Dolichonyx oryzivorus. - Rather less common than
usual. Noted chiefly in the early morning and on
the strength of its call notes heard mostly at the Farm
- for the last time on September 18 [September 18, 1913].