Cambridge, Mass.
1911.
Dec. 10
(No 2)
[December 10, 1911]

Gulls in Fresh Pond
Black-backed Gulls.

who was with me thought that there were fully
2500 in the water at one time and I agreed with
him. When I attempted to count them roughly
I got something like 2400. Practially all were
Herring Gulls and of those almost if not quite 90%
were adult birds. The only other species which
we were able to make out satisfactorily were the
Great Black-backed Gull of which we had no
less than ten fully adult birds in view at
one time scattered about among the others.
There was much less calling than one would have
expected from so vast a concourse but every minute
or two one or another of the Herring Gulls would
give the wild, ringing clem-clem cry. They were
almost continuously arriving from the direction of
Boston in scattered flocks.