ean species; a single specimen taken on Long Island in 1872.

146. REDHEAD. _Marila americana._

Range.--North America at large, breeding from northern United States
northward, chiefly in the interior.

A bird commonly seen in the markets where it is often sold as the
following species because of their similarity. The nests are placed on
the ground in marshes or sloughs, and are made of grasses, lined with
feathers. Eggs from six to fourteen in number, of a buffy white color.
Size 2.40 x 1.70.

[Illustration 097: Rich buff.]
[Illustration: Wood Duck. Redhead.]
[Illustration: Buffy.]
[Illustration: right hand margin.]

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[Illustration 098: WOOD DUCK.]

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147. CANVAS-BACK. _Marila valisineria._

Range.--Whole of North America, breeding chiefly in the interior from
the United States to the Arctic Ocean.

A noted table bird, especially in the south where it feeds on wild
celery. Can be distinguished from the Redhead by its darker head,
lighter back, and gradually sloping bill. They nest abundantly in
Manitoba, their habits being the same as the preceding. They lay from
six to ten eggs of a darker shade than the Red-heads. Size 2.40 x 1.70.
Data.--Haunted Lake, N. Alberta, June 12, 1897. Ten eggs. Nest of reeds
in a heavy reed bed out in the lake. Collector, Walter Raine.

148. SCAUP DUCK. _Marila marila._

Range.--North America, breeding from North Dakota northward, chiefly in
the interior; south in winter to Central America.

This and the following species are widely known as "Blue-bills" owing to
the slaty blue color of that member. Their plumage is black and white,
somewhat similar in pattern to that of the Redhead, but darker, and the
whole head is black. They nest in marshes about many of the ponds and
lakes in the interior of British America. The nest is made of marsh
grasses and lined with feathers. The six to ten eggs are pale grayish or
greenish gray. Size 2.50 x 1.70. Data.--Saltcoats Marshes, N. W. Canada,
June 15, 1901. Ten eggs. Nest in the grass; a depression lined with down
and dried grasses. Collector, Walter Raine.

[Illustration: CANVAS-BACK. American Scaup Duck.]
[Illustration 099: Pale greenish gray.]
[Illustration: deco.]
[Illustration: right hand margin.]

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149. LESSER SCAUP DUCK. _Marila affinis._

Range.--North America, breeding from North Dakota and British Columbia
northward; winters south to Central America.

This Duck is distinguished from the