FAMILY ANATI1XK. DUCKS, GEESE, AM) SWANS. 



79 



Top of head, black, divided on crown; more or less green on head; throat, white; 

 axillars, white; culmeii, divided and pointed at base (male). (See nit of bill.) 



Somateria borea'is. Greenland Eider Duck. 



^ See No. 115. 



Top of head, slate color; cheeks, greenish ; throat, white, with large, black, V-=shaped 

 mark (.male). Somateria spectabilis. King Eider Duck. 



See No. 117. 



Section 2. Hind toe, with well defined membraneous lobe 

 or flap ; no white on head ; belly, black. 



General plumage, black ; axillars, black; no white. on wing; 

 bill, orange at base; feathers on bill, more than one half inch 

 from nostril (male). 



Oidemia americana. American Scoter. 

 Black Coot, 

 liutter bill Coot. 

 See No. 118. 



Section 3. Hind toe, with well defined membraneous lobe 

 or flap ; head, marked with more or less white, or 

 grayish white; belly, mottled brown, or grayish brown, 

 or slaty. 



General plumage, brownish; no white on wing ; feathers 

 on bill, more than one half inch from nostril (female and im- 

 mature). 



Oidemia americaiHt. American Scoter. 



Butter=bill Coot. 



See No. 118. 



Oidemia americana. 



General plumage, grayish brown ; speculum, white ; feathers on bill, less than one 

 half inch from nostril (female and immature). 



Oidemia deylandi. White=winged Scoter. White-winged Coot. 



See No. 120. 



General plumage, grayish brown ; feathers extending on upper part of bill more than on 

 the sides ; no white on wing ; feathers on bill, less than one half inch from nostril (female). 



Oidemia perspicillata. Surf Scoter. Skunk=head Coot. 



See No. 121. 



