FAMILY ANATID.i:. DUCKS, GEESE, AND SAVANS. 73 



Speculum, gray ; liead and neck, hiowuish ; chin ami anterior portion of lores, hrowiiisli 

 white or whitish (female); resenihles female IJed-head, l)iit is smaller. 



Aiitlnjd nillin-is. Ring=necked Duck. 



See \o. 107. 



A patch of white or grayish white on the head, including the eye ; no speculum ; 



under tail coverts, wliite; adult males have the tail feathers loiii;- and poiiittMl. 



Clangnhc hyemalis. Old Squaw. Long^tailed Duck. 



See No. 111. 



Section 2. Belly, white, sometimes tinged on lower part 

 with dusky or gray ; no white or grayish white on head. 



Head, l)rowu; u di.stiiict wing band of white (female). 



Glmicionetta dangula americana. Golden Eye. 



See No. 108. 



Glaucionetta clangula 

 americana. 



Head, black, glossed with green; speculum, white; liack, <;ia\ ish white, finely 

 lined witli lilack (male). 



Aijthya marila. Greater Scaup Duck. Blue^biil or Black-head. 



See No. 105. 



Head, black, glossed with purple, finely lined with black; speculum, white; back, 

 grayish white, smaller than the preceding species, but resemble^ il cbxely (male). 



Aiithyn nffinh. Lesser Scaup Duck. Blue=bill or Black=head. 



See Xo. 106. 



Head, black, with violet or bluish gloss, a spot of white on the chin; speculum, 

 gray; back, dull black (male). Aythtja coUaris. Ring=necked Duck. 



See No. 107. 



Section 3. Belly, not white. 



Plumage, variously marked with white, slate-color, and chestnut; speculum, bluish ; top 

 of head and wing coverts, not white (male). Histrioiiims h/.^trirniims. Harlequin Duck. 



See No. 11-2. 



Top of liead and wing coverts, not white; plumage, dull brown, mottled on the under- 

 parts (female). HistrionicKS histrionicns. Harlequin Duck. 



See No. 112. 

 Top of head, white; wing coverts, white; rump, bluish bbn^k. 



Enicont'tta stpUcri. Stellers' Duck. 

 See No. lU. 



