140 



OIDEMIA NIGRA. THE BLACK SCOTER. 



COMMON SCOTER. BLACK DUCK. 



Fio. 69. 



Anas nigra. Linn. Syst. Nat. I. 196. 



Anas nigra. Lath. InJ. Ornith. IL 848. 



Anas nigra. Temm. Man. d' Ornith. IL 356. 



Oidemia nigra. Flem. Brit. Anim. 



Oidemia nigra. Selby, Illustr. Brit. Ornith. II. 239. 



Oidemia nigra. Jen. Brit. Vert. Anim. 239. 



Oidemia nigra. Bonap. Comp. List, 58. 



Male with the bill having a large protuberance at the base 

 above, the rounded lateral prominences partially feathered ; 

 both mandibles black, but the upper toith an orange-yellow 

 ptatch above, including the nostrils; feet dusky; plumage 

 entirely black ; tail pointed, of sixteen feathers ; first quill 

 very narrow. Female with the bill dusky, its basal promi- 

 nence less elevated ; plumage sooty-broivn, breast and abdomen 

 paler. 



