1910.
June 26 
(No 3)
[June 26, 1910]

with a few others, are now at the height of 
their annual second period of song. Thus from
early morning to late evening, through even the very
hottest hours of the day, the air rings and
resounds clearly on every band with bursts
of delicious melody.
  Cuckoos of both species are far more numerous
this year than I have ever known them to be
before in any part of New England. I hear
them every few minutes, everywhere I go, whether
in cultivated grounds or woodland. No doubt the
abundance of hairy caterpillars (two, gypsy &
brown tails) accounts for this.
  It is a great year for Robins, also. Never
have I known them more abundant. Yet I hear
no chorus singing whatever (& have heard none) although
this entire farm literally swarms with them.