338 FIELD MUSEUM OF NATURAL HISTORY ZOOLOGY, VOL. IX. 



p. 227-288.) "It is a rare winter visitant, reaching here about 

 the southern limit of its distribution." (Ridgway, Ornithology of 

 Illinois, 1895, p. 170.) "A winter resident upon Lake Michigan and 

 found irregularly throughout the state at that season. A speci- 

 men was obtained at Mt. Carmel on the Wabash River, in Decem- 

 ber, 1874, by Prof. F. Stein, and I have observed it at Chicago." 

 (Nelson, Birds N. E. Illinois, 1876, p. 142.). Mr. J. G. Parker, Jr. has 

 a specimen taken at Fox Lake, Illinois, January 2, 1889. (Butler, 

 Birds of Indiana, 1897, p. 622.) "Actual records for the state are 

 not many. Reported from Racine in 1860 by Dr. Hoy. One speci- 

 men was sent to Thure Kumlien from Edgerton in 1877, and one was 

 shot by L. Kumlien, Nov. 14, 1896, on Lake Koshkonong." (Kumlien 

 and Hollister, Birds of Wisconsin, 1903, p. 24. ) 



Genus CHARITONETTA Stejneger. 

 58. Charitonetta albeola (LINN.). 



BUFFLE-HEAD. 



Local names: Butter-ball. Dipper. Bume-headed Duck. 



Distr.: North America, breeding from Maine and Montana north- 

 ward to Labrador and Alaska; south in winter to the United States, 

 and occasionally as far as Cuba (one record ) and Mexico. 



Adult male: A very small duck; head, upper neck, and throat, 

 greenish purple, showing various reflections of bluish and greenish; 

 a large white patch on the head, from the eye backwards; back, black; 



