149. Lesser scaup duck. Aythya affinis. Migrant; not common; a little more common than preceding.
150. Ring-necked duck. Aythya collaris. Rare migrant, though common in Kansas; breeds in far North.
151. American golden-eye. Clangula clangula americana. Rare migrant; breeds far north.
152. Barrow's golden-eye. Clangula islandica. Summer and winter resident; a northern species, but breeds in mountains of Colorado, sometimes as high as 10,000 feet; rare on plains.
153. Buffle-head. Charitonetta albeola. Common migrant throughout State; breeds in the North.
154. Old squaw. Harelda hyemalis. Rare winter visitor; a northern species.
155. Harlequin duck. Histrionicus histrionicus. Resident; not common; a northern species, but a few breed in mountains at an altitude of 7,000 to 10,000 feet.
160. American eider. Somateria dresseri. Very rare; only two records—one somewhat uncertain.
163. American scoter. Oidemia americana. Rare winter visitor; northern bird, in winter principally along the sea-coast, but a few visit the larger inland lakes.
165. White-winged scoter. Oidemia deglandi. Same habits as preceding; perhaps rarer.