Cambridge, Mass.
1899.
December
  Nettion carolinensis. - One in the Pond on the 13th. It was
a young male changing into the full plumage the head &
neck being strongly tinged with reddish and the tail markings 
nearly completed although the body plumage was colored like
these of the [female]. It kept close company with a number 
of Black Ducks. 
  Clangula americana. - Three adult [males] in Fresh Pond on
the morning of the 14th and a solitary [female] on that of the 17th.
These are the only occasions on which I have seen Whistlers
in Fresh Pond since January 1891 when during a particular
spell of severe cold a small flock frequented a space of open
water about the fountain for several days in succession.
Those noted this month kept rather apart from the
Black Ducks. I did not see any of them dive.
  On the Back Bay between the two bridges that connect
Boston with Cambridge Whistlers have been present almost
daily during the present month but in rather smaller
numbers than usual. I counted 40 birds there on the 29th.
Their favorite feeding grounds this autumn are just below
Harvard Bridge on the Boston side. On the Cambridge
side where they used to congregate the water has been
deepened considerably by dredging during the past two
years &, no doubt, most if not all of the feed destroyed.
  Larus marinus. - On the morning of the 13th I
saw two fine adult birds of this species floating near
the middle of an immense bed of Herring Gulls in Fresh Pond.
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