1893
May 18
(No 7)
East Lexington, Mass.
  There are this season, as nearly as we could estimate
their numbers to-day, at least six, [delete]and[/delete] probably eight
or ten, and possibly as many as twelve, pairs of
Carolina Greebes breeding in the reservoir pond. They
inhabit every part of it and move about a good deal
appearing and disappearing in the spaces of open water but
it seemed to me that each pair confined their roving
within certain limits. With the exception of a female 
with young all were very shy and suspicious showing
themselves in the open water only when all was quiet
about the pond and if they caught sight of us on
shore sinking quickly beneath the water and seeking the
secure depths of the thickets of button bushes. When 
not alarmed or apprehensive they swam about boldly
in the open water sometimes approaching within a 
few yards of the shore &[and] diving a great deal for food.
At times they floated as high out of water as Ducks 
& looked nearly as large as A. obscura. The shape and 
carriage of the head and neck reminded us continually
of that of the Loons. Every now and then one would
call co-co-co-co-co-co-keough, keough, keough the series
of notes varying from ten or a dozen to twenty or twenty
five. This series in both form and tone resembled
that of the Yellow-billed Cuckoo but the notes are
all louder and the keoughs deeper and hollower.
This call was almost invariably answered by another
Greebe and frequently three or four would cry out
in quick succession from various parts of the pond.
Another sound less frequently given but still not
uncommon resembled somewhat the whinney of a 
horse. Faxon describes it as a "crooning" sound.
[margin]Pied billed
Greebes[/margin]