Cambridge, Massachusetts.
1900.
December.
(5).
which was keeping them company at that time. After this date
Mr. Deane's counts, made at frequent intervals, gave fourteen,
fifteen or sixteen daily up to December 9th when but five
were seen, though on the preceding day Mr. G. M. Allen had noted
fifteen. On December 10th there were still only five but on
the 14th Mr. Deane counted six. Had the number invariably de-
creased it would be natural to assume that the missing birds
either migrated southward, a few at a time, or were shot
while away from the Pond; as the case stands the most reason-
able explanation seems to be that certain members of the flock
had other resorts where they spent a portion of their time,
and that on the night of the 8th all but six birds departed
for the south, the remainder following on the night of the
14th when the particular part of the Pond which they had fre-
quented froze over.
Waterfowl
at
Fresh Pond.
Ruddy 
Ducks
  This was Cambridge Nook and here they were invariably
seen during their entire stay; either in close bunch not
far from shore (often within 100 yards) with heads buried a-
mong their scapular feathers, sleeping, or scattered about over an
area of half an acre or more, moving restlessly from place to
place and diving incessantly for food. They swam exceedingly
fast with bodies so deeply immersed that scarce more than the
feather of the back, with the head and neck, were exposed.
Their tails were carried at various angles, sometimes in line
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