APPENDIX 365 



48. Ruddy Duck, — Erismatura jamaicensis. 



Upper parts of head, including eye and nape, glossy black ; sides of 

 head and chin white ; throat, neck, back, upper tail coverts, scapulars, 

 and flanks bright reddish chestnut ; lower back and rump grayish 

 brown ; tail brownish black ; under parts white ; bill, legs, and feet 

 grayish blue. Length, 16 in. 



Female. — Upper head dark brown; cheeks brown, white stripe 

 from below the eye to nape ; upper parts dusky brown ; lower parts 

 silvery white ; bill blue ; legs and feet bluish gray. Length about 

 15K in- 



//a^.— North America, except Alaska. Breeds from Hudson Bay 

 to Guatemala. 



49. Masked Duck. — Nomonyx dominicus. 



Head, excepting throat and chin, black ; nape, throat, neck, back, 

 scapulars, and upper tail coverts dark cinnamon ; lower back and 

 rump dark brown spotted with black ; breast dark cinnamon grading 

 into reddish buff ; wings dark brown with white speculum ; under tail 

 coverts cinnamon blotched with black ; tail dark brown ; bill and eye- 

 lids pale blue ; legs and feet brown. Length about 15 in. 



Female. — Head buff, light on chin and throat ; top of head black ; 

 stripe from base of bill through eye to occiput, and one from gape t6 

 occiput black ; neck buff mottled with brown ; upper parts black ; 

 wings dark brown ; speculum white ; primaries and tail brownish 

 black ; under parts ochraceous spotted with black on breast ; bill horn 

 brown. Length, 13 in. 



Hab. — Tropical America from West Indies and Northern South 

 America to Lower Rio Grande, straggling as far as Massachusetts 

 and Wisconsin. An accidental visitor only to United States. Related 

 to Ruddy Duck, but does not go in as large flocks. Flesh is as good as 

 that of Ruddy. Expert diver, and difficult to recover when wounded. 



50. White-winged Scoter. — Oidemia degtandi. 



Entire plumage black, except small spot under eye and Speculum on 

 wing white ; bill black, red, and white ; legs and feet scarlet. Length, 

 20 in. 



Female. — Sooty brown ; white spots on head ; bill dusky ; legs 

 and feet duller than those of the male, flesh color tinged with black. 



Hab'. — Northern portions North America on both coasts, south to 

 Chesapeake, Southern Illinois, Lower California. 



