180 
General Notes. 
A letter by the writer of tlie above to a friend eontinues the history as 
follows : — 
“I have postponed my visit to for a few days; and for a 
reason which perhaps no one but an ornithologist would be likely to ap- 
preciate. I am detained by a Robin, and though its visits are paid at a 
neighbor’s window, still 1 am fascinated. Its first three days’ vi'it is de- 
scribed as accurately as my mother tongue would enable me to do in the 
enclosed paragraph published in our dady of yesterday. It still persists. 
The shade was left up last night, and when I awoke this morning, soon 
after daybreak, it was knocking loudly at the chosen window. Our home 
is quite near, and when my window, which is nearly opposite, is open, I 
hear it very plainly. It continued with but slight interruptions until about 
eight o’clock, when the lady of the house opened the window. It then 
flew down, but even now it is hopping about in the grass near by as though 
watching for the window to close. I have never made ornithology a study, 
but this seems to me a very uncommon proceeding. If you know any 
ornithologist to whom you think it would be interesting, please impart.” 
Later information states that the same proceedings continued until the 
writer of the above left town, — nine days in all ; but that on the ninth 
day the tappings were more feeble, and were not continued later than 
7 a. m., after which time the bird was not seen that day. 
As these sheets are passing through the press, a male Yellow Warbler 
( Dendrceca aistiva ) is behaving in a quite similar manner at my own house. 
For several weeks the bird has been in the habit of frequently visiting a 
grape-vine trellis in front of a window of the dining-room, from which he 
has been accustomed to sing, wholly undisturbed by the people or the 
proceedings within the room. Although the trellis has been a favorite 
resort for the bird, his behavior was not especially noteworthy till June 7, 
when he began to persistently fly against the window-panes, often striking 
them with considerable violence. 
* 
The trellis stands about eighteen inches from the window, and the 
portion immediately in front of it is nearly bare, and consists of two hori- 
zontal bars, about three feet apart. These form his perch, from which he 
usually makes his dive at the window. Immediately in front of the win- 
dow is an open field with a group of five large apple-trees, all within 
twenty to fifty feet of the house. These, with the trellis and portions of 
the grape-vine it supports are vividly mirrored in the windorv, as well as 
the general landscape, and of course the bird himself whenever he visits 
the trellis. But his own reflection does not seem to be the point of 
attraction, as he usually strikes the pane two or three feet above the point 
opposite his perch, but sometimes dives down from the upper bar of the 
trellis to the lower panes of the window. Occasionally he flies directly 
from the apple-trees against the window, but generally first alights on the 
bars of the trellis. For several days his visits have begun with early day- 
break, and have been continued throughout the day till after sunset, he 
