Concord, Mass.
1911.
March 29
[March 29, 1911]

  Clear with light southerly to easterly winds. Deliciously
warm through day but ground hard frozen at sunrise.

Plaintive bird music of early spring
Fox Sparrows
Song Sparrows
Juncos
Bluebirds

  For two or three hours this morning and again in
late afternoon the air was filled with the sweet,
plaintive bird music peculiar to this season. At the 
Farm it seemed to come from everywhere, far & near.
Most of it was contributed there by Fox Sparrows, Juncos
Song Sparrows & Bluebirds. The Fox Sparrows literally
swarmed. There must have been 50 or 60 of them in
the orchard & garden & there were almost as many Juncos.
Yet I did not meet with either species elsewhere.
At Ball's Hill I heard Song Sparrows & Red-wings singing
everywhere about the edges of the river meadows. A Phoebe
sang all the forenoon near the cabin. No birds in the woods.

Cow-bird eating millet seeds

  A [male] Cow-bird appeared at the seed bed under our
window this morning & stayed there about ten minutes eating
millet seed in company with Fox Sparrows & Juncos.