Glendale, Mass.
1911.
Sept 4
(No 3)
[September 4, 1911]

Remarkable flight of Night-hawks

doing so and the wing beats were seldom frequent or pronounced enough to
be very noticeable or to divert one's mind from the general impression of
effortless and exquisitely smooth and graceful soaring which the sight of the
swarm, in its entirety, produced. All the while the birds were drifting off
towards the south-east before a light north-westerly breeze. They were just
passing out of sight beyond the house when I entered it - after watching 
them for a couple of minutes - to call out some of my friends. Although
we all rushed out of its south door not half-a-minute later the
Night Hawks had somehow and most mysteriously disappeared during this brief
interim. How they could have done so is difficult to understand for we had
an unobstructed view of the sky from the horizon to the zenith in the
direction in which they were going yet not one of them was again seen.
Their behaviour on this occasion was so utterly unlike anything that I have ever
before witnessed on the part of any members of their tribe that I could
not believe that they were really Night Hawks until, with the aid 
of my glass, I had identified them beyond possible doubt.