Back Bay Basin,
Boston, Mass.
1909.
Feb. 27
(No 3)
any particular difference for they seemed to pay
little or no heed when I stood up and walked about.
Those nearest at hand were within short-gun range,
those furthest removed not over two hundred yards
away; the others were dispersed over the intermediate
space, occuring most numerously, perhaps, about midway
between its outer and inner confines one hundred yards
or so from where I sat. As many of them kept diving
and shifting under water from one group to the next
it was impossible to count them accurately but the
total number was not far from sixty. There were about
thirty fully adult males, perhaps ten immature males (showing
only a little white on cheeks and scapulas), and some
twenty females. Most of the females appeared to have
unicolored and dark brown or blackish bills but
one showed a conspicuous bar of golden yellow on the
Whistler courtship.
Females