Spraying day. Concord
Ther [Thermometer] Wednesday, June 13, 1917 Wea [Weather] 
Perfect
Early morn cloudy & foggy. Rest of day sunny &
very warm, calm for most part but with some
light southerly wind.
  Birds singing well but they seem much
less numerous than a week or so ago,
I hear only one Chestnut side Warbler [Chestnut-sided Warbler], no
Yellow Warbler, or Grosbeak, but one Tanager.
The extreme scarcity of vireos is especially
remarkable. Not one of any kind heard to-day.
Pheasants, also, are well nigh gone from this
neighborhood. I hear our Crows occasionally
but have not set eyes on one for weeks.
Saw a [male] Coopers Hawk cross field front
of house with characteristic swift, gliding
flight. Crows & Jays inconspicuous now.
  Taking advantage of the fine calm weather
we put in a most satisfactory day of spraying.
Pierce with six men dealt thoroughly with all
the woods, thickets, & large trees with cultivated
parts of Farm, along the public road & in
Cedar Park while Duren & George did all the
apple & other fruit trees here and at Ritchie place.
I was with both groups of men much of the time.
Everything went off most successfully.

Concord. First Dragon Flies on wing
[First] Tree Toads singing in water.
Ther [Thermometer] Thursday, June 14, 1917 Wea [Weather] 
82 [degrees] Magnolia Warbler in Birch Field. Fine
Clear & very warm with fresh S.W. [southwest] wind.
  Magnolia Warbler [male in full song], unseen, singing among
dense young white pines at west end of Birch Field
in forenoon & afternoon. I heard him there on
the 12th but not well then. His song seems
typical of maculosa but is not of the usual
"pretty, pretty, Rachel" form.
  Many birds singing freely to-day. Redstart
(a new comer, apparently) in oak grove behind
lane. Wood Pewee in Run. Yellow bill Cuckoo [Yellow-billed Cuckoo]
in Birch Field, Black-bill [Black-billed Cuckoo] at Farm. Whippoorwill
in full cry at eve [evening] to W. [west] of Berry Pasture.
Brood of young Bluebirds out of nest (all but one)
at 6.30 P.M. & scattered about orchard, calling
Tree Toads calling by scores, in water, for
first time, this evening.
First Dragon Flies - very many - on wing.
 Pierce's men sprayed run & oaks about
Barrett Spring, Duren parts of Berry Pasture
& most of Birch Field. It all went
remarkably well. I was with the
men all day. Gilbert [Robert A. Gilbert] went to Cambridge
after dinner & motored C. [Caroline Brewster] to Lancaster.
Fred Galloupe called this eve[ning] staying half an hour.