Concord, Mass.
1909.
May 20
  Brilliantly clear with cool east wind.
  About seven o'clock this morning I saw a female
Black-throated Green Warbler collecting shreds of bark from the
stems of some dead alders behind Ball's Hill. After obtaining
a bill full of this material she flew up into the very top
of a white pine fully 50 feet in height appearing a minute
or so later at nearly the point where I lost sight of her 
and descending to the alders again. As I saw her do all
this thrice in succession I concluded that she must have
a partly finished nest in the top of the pine, a broad
bushy-topped, down-shaped tree. The place where she entered
it was no more than three or four feet below the very
topmost twigs.
Nest of Dendroica virens in extreme top of large pine
  Four Least Sandpipers were feeding on some mud 
that was dug out of our boat canal last autumn. I
got very near them & saw their yellowish brown legs distinctly.
Least Sandpiper