1905.
May 22
(No 2)
  Early yesterday afternoon and again to-day at nearly the
same hour I heard a Night hawk peeping in the oaks behind
the bird. It was unquestionably perched on one of the branches
of these large trees but I looked for it in vain. The weather
was clear on both occasions. The bird peeped six or eight
times at short intervals.
  On the morning of the 19th I found two northern
Water Thrushes among some bushes that border a stone wall
on the hillside just below our barn and at noon to-day
I started one in the flower garden behind the farm house.
It is very unusual for them to frequent such elevated, dry
places at this season, at least in this neighborhood.
  Swainson's Thrushes are unnaturally numerous here this spring.
Two in the deep hollow behind Ball's Hill were singing and
calling much of the forenoon. Two others were calling in
Birch Field - a favorite haunt of theirs. I noted their calls
thus Whip, whip, whip -er r r r and pip, pip the latter
being a variation of the whip note. The song
is well nigh impossible to render but I noted it
wher-er-eo-e-e e
  Saw several Black-throated Green Warblers to-day
in low bushes and two or three hopping about on
the ground in company with Maryland Yellow-throats.
This happens, I believe, only during migration & when the
weather is exceptionally cool.
  Tanagers are frequenting open places & keeping low down
this cool weather. I saw a pair on the ground in a ploughed
field yesterday & again to-day. They are exceedingly tame, also.