Concord, 13 June, 1904
  Clear and cool with light E. [east] wind.
  Spent forenoon at the farm working 
in the garden and doing various odd things. 
In late afternoon we moved to Ball's Hill 
to spend the night there. No less than
four different Bitterns were pumping at sunset, 
one mostly opposite the cabin, another opposite
Bensen's landing - two still further up the meadow.