ascertained to occur in Illinois. 389 



Subgenus Mareca, Stephens. 



268. A. penelope (Linn .). European Widgeon. Accidental in the 

 northern part (Chicago, D. G. Elliot, P. Z. S. — ) 



269. A. Americana (Gmel.). American tVidgeou; "Bald-pate." 

 Transient, or winter sojourner southward. 



Subgenus Dafila, Leach. 



270. A. aaita (Jj'win.). Pin -tail ; Sprig- tail. Transient, or occasional 

 winter sojourner in southern portion. 



Subgenus Nettion, Kaup. 

 *271. A. Carolinensis (Gmel.). Green-winged Teal. Resident, but 

 most abundant during migrations : breeds ouly in the prairie districts, 

 and winters chiefly in the lagoons of the heavily timbered bottoms. 



Subgenus Qiierquedula, Stephens. 

 *272. A. discors (Linn.). Blue-winged Teal. Resident. Breeds 

 sparingly in the pi-airie districts, and winters in small numbers in the 

 ponds of the bottoms. 



Subgenus Spatula, Boie. 

 *273. A. clypeata {Ij'win.). Shoveller; Spoon-bill. Summer sojourner 

 in the northern portions ; transient, or winter sojourner southward. 



Genus Aix, Boie. 



*274. A.sponsa (Linn.). Summer Duck; Wood Duck; Tree Duck. 

 Summer sojourner in northern portion, and resident in southern part. 



Genus FuUgida, Stephens. 

 Subgenus Fulix, Sundevall. 



275. F.marila (Linn.), a. var. man7« L i u n . Scaup; Broad-bill; 

 Blue-bill. h. var. affinis F o r s t . ' Little Scaup, etc. Winter sojourner. 



276. F. collaris D o n o v . Ring-neck Scaup ; Ring-bill. Winter so- 

 journer. 



Subgenus Atjthya, Boie. 



277. F. Americana 'E J t o n . Red-head ; American Pochard. Winter 

 sojourner. 



278. F. vallisneria W i\ s . Canvas-back. Winter sojourner. 



Genus Bucephala, Baird. 



279. B. clauf/ula (Linn.), var. Americana Bo nap. Winter so- 

 journer. 



280. B. alheola (Linn.). Butter-ball; Buffle-head; "Di Dipper." 

 Winter sojourner. 



