Concord, Mass.
1907
Jan'y 1
(No 2)
Bridges who joined us soon after the flight began, we
counted all the Crows that passed within sight as accurately
as we could the result being 595 birds. As all the
flocks passed nearly over us and as no Crows were seen
in the distance to the north-east or south-west it is
safe to contend that the path of this flight at this
point was, on this occasion, a narrow and well-defined
one and that we noted about all the birds which
composed it. That they were going to some roosting
place is almost equally certain. This may have been
at a considerable distance for as the birds passed
beyond our ken they were all keeping steadily on
their way. Most of them flew at an elevation of
about one hundred yards. This is the first instance
that has come under my observation at Concord
of a well-marked and considerable flight of Crows
moving at evening in any direction other than that of
an evident line of migration. These birds could not
have been migrating, of course. Most of them came,
no doubt from on or near the sea coast for only a very few
Crows are accustomed to spend the winter in
Lincoln or Concord.
  Mrs. Bridge tells me that six pairs of Eve Swallows
bred last summer in Mr. Mason's barn at (?)
house, Concord building their nests on the rafters in the
barn just as Barn Swallows do. She saw five occupied
nests in this barn in the summer of 1905. Mr. Mason
values the birds & keeps a window open all summer
so that they may enter and leave the barn at
all hours.
Eave Swallows nesting on rafters inside a barn.