FAMILY ANATIDyK. -- DUCKS, GEESE, AND SWANS. 73 



Speculum, gray ; head and neck, brownish; chin and anterior portion of lores, brownish 

 white or whitish (female) ; resembles female Red-head, but is smaller. 



Aijthijn ciillnrix. Ring=necked Duck. 

 See No. 107. 



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



under tail coverts, white; adult males have the tail feathers long and pointed. 



Claw nit a 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, brown; a distinct wing baud of white (female). 



Glaucionetta clanynla amrrii-inia. Golden Eye. 



See No, 108. 



Glaucionetta elangula 

 Americana. 



Head, black, glossed with green; speculum, white; back, grayish white, finely 

 lined with black (male). 



Ay thy a mania. Greater Scaup Duck. Mine hill 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 resembles it closely (male). 



Aij/lujn njtiiiix. Lesser Scaup Duck. Blue bill or Black-head. 



See No. 106. 



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

 gray; back, dull black (male). A>/th>ia <-ll<iri*. 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). His1ri<nti<-nK Itistrinnims. Harlequin Duck. 



See No. 112. 



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

 parts (female). Hi>*tri<iiriis histriouicns. Harlequin Duck. 



See No. 112. 

 Top of head, white; wing coverts, white; rump, bluish black. 



Enicnnctta stellcri. Stellers' Duck. 

 See No. 1U. 



