Ducks 



163. American Scotttr {Oidemia amertcana) . I.. 19. 



Feathers at bj^e of bill not extending forward on sides 

 «r top. ^d.^. Wholly; black; bill black, yellow at 

 base. Ad. 9. Brownish above, lighter below; nn 

 whit; Oil win; or on ■■iJei of liejd. Notos. A l^n,; 

 musical whistle. (Elliot.) 



Raree.— Northern North America; breeds from Labrador and Alas- 

 kan shores ot Bering Sea nortriwar4; winters south to Virginia, Great 

 Lakej, Co>or44<j,anil Caliturnla, 



166. SurfScoter (OUsmia perspicillata). L. 20. 

 Fejthers extending forward on top of bill. Ad. (^. 

 Black, lup^ and crown white; bil! orange, yellow, and 

 ■white, a round blaijk patch on its sides. Ad. $. 

 Abuve black, t.irodt and breast paler; belly whitisli; 

 ^ wliiU-li patch at base of bill. Yng, Simihr but 

 with white patches on ears. 



Riiiige— NorihtiTi North America; breeds from Nevrfoundlnnd 

 northw.irJi winters sojth to Virginia, Florida, lllirols. and Luwcr Cal- 

 Womia, 



165. White-winged Scoter {Oidemia deglundi). 

 L. 22. A white patch on wing; feathers extending 

 forward along sidfi and top of bill nearly to nostrils. 

 ^d. c?. Black, a whitd spot about eye; bill orange, 

 tlack at base. Ad. 9- Dusky brown above; lighter 

 fcelow. Yiig. cf. biinilar but sides a.id front of head 

 whitish. 



Range. — Northern North America; breeds (rom Labrador and North 

 Dakota northward; winters south lo Virginia, southern Illinois, and 

 Lower CalKornla. 



( 77. Black -bellied Tree Duck CDendrocygna au- 

 lamnalii). L. il. Ads. Belly and tail Coverts black. 

 foreback and breast gray; greater wing-coverts 

 whitish. Notes. A slirill whistle. CEHiot.) 



Range. —Tropical America north to southim Texas. 



178. Fulvous Tree Duck CDendrocygna fuha). 

 L. 22. Ads. Belly uniform rusty brown, upper tail 

 coverts white; a black streak on hindneck; no white in 

 w,ng. Notes. A squealing whistle. 



Range. — Tropical America, north In iiimmer to Texas. Louisiana, 

 Nevada and <:entral Calllnmla, "Casual Iri North Carolina and 

 Missouri." (A. O, U.) 



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