Concord, Mass.
1907.
April 7
  The weather has been exceptionally cold for
the season the past two days the thermometer
falling to 24 degrees Fahr. both mornings. As a natural
result few, if any, birds have arrived from the South
and most if not all of the northern-breeding
Finches which appeared on the 2nd, coming, as
I believe, from the North (by an interesting and
unusual retreating movement) are still with us.
  Fox Sparrows were singing gloriously, close to 
the cabin, at the sunrise this morning and just before
sunset I counted 22 of them feeding in the
seed bed under the window. They had eaten
all the hemp seeds and were devoting themselves
to the sunflower seeds which they ground into
fragments in their bills before swallowing them.
About half-past six the last birds deserted the
bed and flew off westward. Following them I
came on what seemed to be the entire flock
going (or rather gone) to roost among the dense
young pines in Pine Park. They had all settled
on their roosts, I think, when I reached this
plantation but they were calling incessantly
to one another, making such a loud and
seemingly excited clamor that I thought at first
that they had discovered an Owl or a Cat
among or under the trees. I could find nothing
there, however, but a Partridge which could hardly
have alarmed them. There was no singing and no
lisping the only note used by any of them being the
tchuck ones. This is closely similar to the tsup