136 



DUCKS. 



fig. 160. Female, reddish-brown transversely banded with, 

 dark-brown. Young male, similar to female. Breeds on the 

 Fig. 159. Fig. 158. 



JV, C, g, 1. 1-15. IV, C, f, 1. 1-15. 



Atlantic coast from northern Me. to Labrador ; winters from 

 Mass. to Del. and west to the Great Lakes; comes south in 

 late Oct. ; north in April ; common, but on the coast of Mass. 

 keeps well out to sea, feeding about islands that lie well out. 

 Nests placed on the ground near the sea; eggs, ashy-green. 



1*. NORTHERN EIDER, S. D. BOREALis. Differs from 

 1 in having the fleshy process at base of bill terminating in a 

 point, fig. 161. Breeds in northeastern N. A, and Greenland; 

 south in winter to coast of Mass. 



i. Arctic Eiders. Eritonetta. 



Differ from h in having the base of bill considerably swol- 

 len and its fleshy process greatly widened, fig. 162. 



1. KING EIDER, E. spegtabilis. Differs from h, 1 in 

 having the top of head bluish-ash with black reduced to a 

 narrow line about fleshy process and spot under eye; black 

 V-shaped mark on throat, lower back and wings, dark-brown. 

 Breeds in the Arctic regions ; in N. A. south to winter as far 

 as northern N. E. and rarely along the coast to Ga. 

 j. Black Scoters. Oidemia. 



Base of bill slightly swollen; color wholly black. 



1. AMERICAN SCOTER, O. Americana. 19.00; bill, 

 1.50 ; base of bill orange, black terminally ; feet, greenish, fig. 

 163. Female, dull brown, whitish on sides of head. Breeds 



