FA3IILY ANATID.E. DUCKS, GEESE, AND SWANS. 



79 



Top of head, black, ilividi-d on (.-luwu; more or less green nn licad; tlu-oat, white; 

 :ixillar#, white; cuhueu, divided ami jioiuted at base (male). (See cut of hill.j * 



Svmateria bot'ea'is. Greenland Eider Duck. 

 See No. 11.5. 



Top of head, slate color; cheeks, greeuisli ; throat, while, with lar<;e, hlack, V=shaped 

 mark i^niale). Soma!eria spectabilis. King Eider Duck. 



See Nu. 117. 



Section 2. Hind toe, with well defined membraneous lobe 

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



Genera! plumage, black ; axiUars, Idack; uo white on wing; 

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

 // from nostril (male). 



Oidemia americana. American Scoter. 

 Black Coot. 

 Butter=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 americana. American Scoter. 

 Butter=bill Coot. 

 See X... lis. 



Ouleraiii 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 ; fealliers extending on upper part of bill more thauon 

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



Oidemia perspicillata. Surf Scoter. Skunk=head Coot. 



See No. 121. 



