Concord, Mass.
1916 [1910]
June 16
[June 16, 1910]

  Within the past three or four weeks we have sprayed practically
every tree and shrub within 150 yards of the farm house besides some
thirty acres of woodland at Birch Field, Pulpit Rock, Balls Hill &
Davis Hill. As far as I have been able to determine no
harm has resulted to the birds. They continue as numerous
as usual in the sprayed woodlands and they are much more
numerous than I have ever before known them to be at this
season in the orchards, shade trees and woods on the Farm.
Although I have kept the closest possible watch on them in
the immediate neighborhood of the house where almost every
leaf is blue with arsenate of lead (& has been so for weeks) I
have found no dead birds nor missed any living ones. Here they
are having exceptionally good success thus far with hatching & rearing
their young for the Jays, Crows & Red Squirrels have molested them
but little if at all. I see them getting food (insects of various
kinds) among the poisoned foliage and feeding it to the young