Concord, Mass.
1905.
April 14
  Clear and warm with light N. to E. wind.
  Arrivals: Chippy. - male singing in the afternoon at the Farm.
  Bittern. - Male pumping near head of Great Meadow
Arrivals
  Spent the afternoon at the Farm planting larches in
Birch Field. Two Blue Jays making the bell-note call
and two Red-shouldered Hawks screaming. Three Fox Sparrows
behind the house, one singing.
  As I was sailing about in a canoe over the Great
Meadows at evening I heard the first Bittern of the season.
He was pumping near the head of the meadow. 4 Black
Ducks passed over the meadow flying rather high towards the S.
  I have heard or seen Red-bellied Nuthatches of late in
Pulpit Rock woods, in Prescott's pines, and on Davis Hill.
About 2 P.M. to-day as I was on the north slope of
Pine Hill (or Pine Ridge) next the Swamp I heard what I
took to be a Woodpecker tapping rather loudly. Presently I
discovered the bird which proved to be a male Red-bellied Nuthatch.
It was hard at work excavating a hole in a dead pitch pine
about 20 ft. above the ground. The hole had been carried in so
far that as the bird worked I could see only the tip of
its tail. Every half minute or so it backed out with a 
mouthful of chips which it scattered on the ground by a
quick jerk of the head. A female Nuthatch evidently its mate
was feeding among the branches of a white pine only a
few rods away. Both birds were very silent. I think
they must be intending to nest in the pitch pine & I
believe the pair I have seen in Pulpit Rock woods will
nest there also.
Sitta Canadensis working on nest in Pine Ridge woods