Cambridge, Mass.
1907
March 12th
to
18th
  Up to March 12th there had been no abatement in
the rigor of a very cold and snowy winter and the only
obvious sign of the approaching spring was that afforded
by increasing warmth of the sun's rays. The sleighing continued
excellent, the sidewalks were still encased in ice and
the city lawns and gardens were buried under a foot or
more of snow. On the 12th the weather moderated
and the temperatures have been above freezing (except at night)
most of the time since while on the 17th it rose to 56 degrees.
Under the combined influence of mild temperatures, bright sun
and a warm rain which began on the 13th and continued
through the 14th, the snow and ice disappeared rapidly
yet without at any time flooding the streets. By the
evening of the 17th most of the ground was bare and
by that of the 18th there was but little snow or ice
to be seen while the leaves were distinctly green, the
sidewalks perfectly dry and the streets even dusty in
places.
Change from winter to early spring
  At a Nuttall Club meeting held on the evening of the 18th
several observers who have been constantly in the field of
late agreed that there had been no marked change in
the bird life up to the 17th. On that day there was
a considerable flight of early spring birds and on the
next a veritable "rush" of them. During these two days
Robins, Bluebirds, Song Sparrows and Red-wings arrived
in large numbers and on the second day a few 
Fox Sparrows, Crow-Blackbirds and Rusty Blackbirds, besides
two Phoebees, were noted. All these birds were observed in or
near Cambridge. Only one of them appeared in our garden
- a Robin which I saw & heard calling in our catalpa tree
just as it was getting dark on the evening of the 18th.
A sudden rush of early spring migrants.