120
Concord, Mass.
1898.
June 7
  Clear and very warm with light N. to E. winds.
  Spent the forenoon photographing birds' nests
exposing plates on the Chestnut-sided Warblers in
the greenbriar vine, the Creepers under the white
pine, and the Cooper's Hawks' (deserted) in
the Glacial Hollow.
  The Chestnut-side was very nervous keeping
her head in almost constant motion & leaving 
the nest repeatedly while I was at work.
  The Creeper, on the other hand, sat perfectly
motionless and we left her on the nest without
having even disturbed her.
  At evening there was a fairly deafening
din along the river made by innumerable toads,
Tree Toads, Bull Frogs, and Green Frogs. The
Hylas and Leopard Frogs have apparently ceased for
this season. The last Hylas were heard on
the evening of the 4th, the last Leopard Frog
on the 5th.
  Early this morning a bird made a singular
deep, groaning sound I the pines on Ball's Hill.
I think it must have been a Green Heron.