1892.
April 18
Concord, Massachusetts.
Mass.
Concord. - Clear and cool. Winds variable in force
& direction from N. to S.E.
  Spent the morning about the place. At 3 P.M.
started in my Rob Roy canoe for Ledum Swamp.
Sailed the entire distance excepting two short
reaches.
  Saw little of interest until I reached Clam Shell
Hill where several Savanna Sparrows were flitting
over the meadow. As I returned at evening one
of them was singing. A little beyond this hill
two Purple Martins and a particularly fine Barn
Swallow were flying about over the river in
company with eight White-bellies.
  While I was digging up plants in Ledum Swamp
I heard a Kinglet (satrapa) singing in the
spruces. Crossing a pasture I came upon a flock
of ten Yellow Palm Warblers skipping about on
the smooth turf hundreds of yards from any
cover. Also saw two Juncos. A fox terrier which
had been following & barking at me flushed a
Partridge from the edge of the woods.
[margin]Dend. hypochrysea[/margin]
  As I started down river a little after sunset
Swamp Sparrows were singing in the Button
bushes. About 30 Red wings were assembled
in the top of a large oak on the meadow
singing in medley. This is the only large flock
I have seen.
  I counted nine Muskrats before I reached
the Assabet. One came within four feet of me
evidently taking the canoe for a log & intending to
land on it. I saw another dive & bring up a "clam"
[margin]Muskrats[/margin]