THE WHISTLER 341 



speculum ashy bluish or grayish. Below mostly 

 white ; helly and flanks waved with black ; cris- 

 sum black. Bill black, edges, base and a belt 

 across near the tip bluish gray. Feet bluish 

 gray with black webs. Iris yellow. 



The female has no collar. Where the male is 

 black she is brownish. Wing and speculum the 

 same as in the male. The bluish gray color of 

 the speculum is the main point of difference be- 

 tween the female of this species and the females 

 of the Scaups, whose speculum is white, al- 

 though females of the present species may be 

 slightly browner above and on the flanks. 



Length of the Eing-necked Duck from sixteen 

 to eighteen inches; extent from twenty-eight to 

 thirty inches. 



THE WHISTLER. GOLDEN-EYED DUCK. 



(Clangula americana.) 



This duck is from fifteen to eighteen inches 

 in length and weighs from two to two and one- 

 half pounds. The head and upper part of the 

 neck are rich, dark green 1 in some lights al- 

 most black, in others glossy and metallic in its 

 lustre. A spot of white on each side at the base 



