Concord, Mass.
1902.
June 21
  Cloudy with heavy rain, beginning at 8 A.M. and
lasting through the day.
  I left the farm house at about 11 A.M. and
walked to Ball's Hill by way of Birch Field and
Davis's Hill.
  As I was passing through the apple orchard
I heard one of the Crested Flycatchers calling in
the rows of tall oaks and at the same instant
saw its mate flying past me bearing in her bill
what looked like a large, ripe cherry. She went
directly to a small, scraggy wild apple tree, overrun
with poison ivy, which stands on the extreme
southern edge of the orchard near the line of oaks
just mentioned, and disappeared among its foliage.
On examining this tree I found that it had a
hollow branch at almost the exact height where I
had lost sight of the bird. The light was so poor
that I could not see the interior of this entry at
all distinctly from above, but from below, where it
opened into a much larger hollow trunk (the main
stem of the tree), I could make out a mass of
what looked like dry grass & weed stalks which
quite filled the hollow branch at a point just above
its intersection with the larger trunk & about
two feet below the opening (a small, rounded one)
at the end of the branch. I have little doubt
that this was the Flycatcher's nest. While I was
looking at it both birds came about calling anxiously.
Nest of Crested Flycatcher at Farm
  A Blackburnian Warbler was singing in Prescott's pine
woods. I saw the bird a rather dull-plumaged male. This
Blackburnian Warbler
34