1906.
May 20
  A beautiful day, brilliantly clear with strong, bracing N.W.
wind. Ther. 50 degrees - 76 degrees.
  Nighthawk. Heard one peeping in the oaks behind our
barn about 9 A.M. I heard one there last year on May 21st.
Arrival.
  There were but few north-bound migrants about to-day.
In the early morning I heard near the house only our
common summer resident birds. During a walk to
Ball's Hill (10-12 A.M.) I heard two Black and Yellow
Warblers & a Blackburnian. At the east end of Ball's Hill
were two male Black & Yellow Warblers, a pair of Canadian Warblers,
a female Wilson's Black-cap & a female Redstart. There was a 
silent Water Thrush near the cabin.
  The Blue Jay was sitting on her five eggs in the
pine at the wood shed. Strange to say a Robin was
sitting on the last year's nest of the Jay's which is
in an oak within a few yards of the log cabin &
not twenty yards from the wood shed. The old nest
looks dilapitated and shows no signs from below of
having been made over or altered by the Robin but
I started that bird from it three or four times &
she called anxiously as long as I remained near
it so I think she must have eggs.