344 I'li-'i.i) Mrsiu'M OF Xati'kai. IIisiouv Zoology, Vol. IX. 



ward; winters from New I'^oundhmd to North Carolina and casually 

 to Florida; on tho Pacific side from AU'utian Islands to California. 



Adult ))ialc: Gcticral pliDnui^c, entirely black; bill, black, the upper 

 mandible lacing yellowish orange at the base; jeathers on the bill more 



than one-halj inch from the nostril; 

 no white on the ivin(:^. 



Adult female: Brownish, or 

 sooty brown; paler on the under 

 ]iarts, becoming grayish white on 

 the belly; sides of the head, 

 whitish ; jeathers on the bill more 

 than one-half inch from nostril; 

 no white on the wing. The 

 female is smaller than the male. 



Length, 19; wing, 9.10; tarsus, 1.65; bill, 1.80. 

 The American Scoter Duck is a common winter resident on Lake 

 Michigan, its numbers varying with diflferent seasons. Arrives in 

 November and leaves early in April. 



Subgenus MELANITTA Bole. 

 64. Oidemia deglandi Boxap. 

 White-wixged Scoter. 

 Local names: White- winged Coot. Velvet Duck. 

 Distr.: Northern North America, breeding from North Dakota and 

 Labrador north to Hudson Bay and the Arctic coast; winters from the 

 Gulf of St. Lawrence to South Carolina and casually to Florida, and 

 on the Pacific side from Alaska to Lower California. 



Adult male: General plumage, black; upper mandible, orange, 

 blackish at the base; a white spot under the eye and a broad patch 



of li'hite on- the wing; 



^^^KJff^^ f^OLtliers on the bill less 



^^^^^kj^^^^^ than one-half inch from 



and behind the ears; the 

 speculum is white, which is a good distinguishing character. 



Length, 21 

 measure, 2.75. 



wing, 11.15; tarsus, 2; bill (culmen), i.; 



side 



