vi CONTENTS 



Scaup Duck, Nyroca marila (Linne) 248 



Nyroca marila marila (Linne) 270 



Nyroca marila mariloides (Vigors) 270 



Nyroca marila neardica (Stejneger) 271 



Lesser Scaup Duck, Nyroca affinis (Eyton) 272 



Steamer Duck, Tachyeres cinereus (Gmelin) 287 



Golden-eye, Bucephala clangula (Linne) 298 



Golden-eye, Bucephala clangula clangula (Linne) 323 



American Golden-eye, Bucephala clangula americana (Bonaparte) 323 



Barrow's Golden-eye, Bucephala islandica (Gmelin) 324 



Buffle-head, Bucephala albeola (Linne) 334 



Long-tailed Duck, Clangula hyemalis (Linne) 347 



Harlequin Duck, Histrionicus histrionicus (Linne) 367 



Atlantic Harlequin Duck, Histrionicus histrionicus histrionicus (Linne) 382 



Western Harlequin Duck, Histrionicus histrionicus pacificus Brooks 383 



