First Bull Frogs. Concord
Ther [Thermometer] Sunday, June 17, 1917 Wea [Weather]
Dick Dana [Richard Henry Dana Jr.] & Dan French [Daniel Chester French] here. Stormy
Incessant rainfall almost if not quite
the heaviest of this exceedingly rainy spring. Swamps
flooded; brook at Barrett spring a raging torrent
where it pitches down under big oaks. Brook
that leads beside Howe's lane fairly roaring
down it [its] rocky bed. The foliage gloriously
dense & flourishing albeit swarming with
Gypsy larvae. It has somehow developed much
in advance of them this year & as yet shows
little trace of their ravages even where not sprayed.
I fear most of our spraying may prove ineffective
because so washed by the tremendous rains.
  Dick Dana motored up from Cambridge
to spend the day, arriving about 10 A.M.
We spent remainder of forenoon by open fire,
in friendly talk. After dinner we started for
a walk, despite the rain. We went through Birch
Field & Prescott pines, over Davis Hill, past
Ball's Hill and back via Holden Hill & Howe Meadow
Lupines in Pine Park glorious to behold.
Birds almost wholly silent everywhere
Beaver(?) Muskrat(?) house in Holden Meadow
Somewhat dilapidated looking & surrounded by water.
Dick started for Cambridge at 5.30.
Dan French telephoned from the Keyes' this eve.

Two Bull Frogs bellowing in river near Beaver Dam Rapid

Concord Cooper's Hawk at aviary.
Ther [Thermometer] Monday, June 18, 1917 Wea [Weather]
Perfect
Brilliantly clear & just agreeably warm with
light westerly wind - nearly S.W. [southwest] in P.M.
  Birds singing well all day. but not many
of these, apparently. Can it be that the marked
increase in their numbers noted on 14th & 15th
represented mostly individuals bound further
north? None of especial interest to day save
the White-throated Sparrow whose dull. five-note
song came to my ears at short, regular
intervals for half an hour (1.30-2 P.M.)
evidently from a neglected corner at north-east
end of cow pasture, growing up to ground
juniper & young white pines.
  As I came around the old barn at noon
a [male] Cooper's Hawk closely pursued by a mob
of irate swallows (4 Barn [Barn Swallow], 1 Tree [Tree Swallow]) dashed
away from the aviary at E. [east] end of house where
he must have been trying to get at the Pigeons.
He crossed the lawn less than 6 ft. above it.
  Spent most of day spraying apple trees
with one little hand tub machine. Burbank
helped me in forenoon, George in afternoon.
We repoisoned trees where the previous spraying
was not thorough. Some of these swarmed with
Gypsy larvae but all Pierce's work has been
absolutely effective.