200 Catalogue of the Birds of Illinois. 



Genus Nettion, Kaup. 

 *290. iV. carolinensis (Gmel.) Baird. Green-winged Teal. Resident, but 

 chiefly transient. 



Genus Aix, Boie. 

 *291. A. sponsa (Linn.) Boie. Summer Duck. Resident southward; sum- 

 mer sojourner northward. Usually known as the " Wood Duck." 



Genus Fulix, Sundevall. 



292. F . marila [lAnw.) Bsuivdi. Scaup Duck. Winter resident southward; 

 transient northward. Rather rare. Known as the "Black-head" (or "Big 

 Black-head"), "Blue-bill," &c. 



*293. F. affinis (Eyt.) Baird. Lesser Scaup Duck. Chiefly transient, but 

 breeds in the northern part of the state [Jide Nelson, p. 141), and winters in 

 the southern portion. Much more abundant than the last. Known as " Little 

 Black-head," &c. 



*294. F. collaris (Donov.)B?dvd. Ring-necked Duck. The same remarks 

 apply to this as to the preceding, but it is less numerous. One of the names by 

 which it is most frequently known is that of " Ring-bill." 



Genus ^thya, Boie. 



295. u'E. vallis7ieria {Wih.)Boie. Canvass-back Duck. Transient, or occa- 

 sionally wintering. 



296. ^F. americana [Eyt.) Bp. American Pochard. Transient; occasionally 

 wintering. The "Red-head" of sportsmen. 



Genus Clangula, Fleming. 



297. C. islandica (Gmel.) Bp. Barrow's Golden-eye. Winter sojourner. 

 Occurs throughout the state. 



298. C. glaucUini americana (Bp.) Ridgw. American Golden-eye. Winter^ 

 sojourner. 



299. C. «Z?j(?o?rt(Linn.)Steph. Buffle-head. Winter sojourner. Has vari- 

 ous popular names, as " Butter-ball," " Di-dipper," &c. 



Genus Histrionicus, Lesson. 



300. i/. w»»f»i!»,s (Linn.) Dresser. Harlequin Duck. Winter sojourner. 

 Occurring throughout the state. 



Genus Harelda, Leach. 



301. //. glacialis (Linn.) Leach. Long-tailed Duck. Winter sojourner. 

 Occurs, like the last, throughout the state on the larger streams. 



Genus SoMATERiA, Leach. 



302. S. mollissima dresseri (Sharpe) Coues. American Eider. Winter 

 visitant, chiefly on Lake Michigan. 



303. 5. spectabUis [limn.) Boie. King Eider. Rare winter visitant (see 

 Nelson, p. 143). 



Genus ffioEMiA, Fleming. 



304. ffi. rtwer/cayjff (Sw. & Rich.) Black Scoter.' Winter sojourner, chiefly 

 on Lake Michieran. 



