BIRDS OF THE J'ICIXITY OF NEW YORK CITY 141 



Canvasback (Aythya zvllisneria) . Occurs here as a iint common migrant. 



American Scaup Duck; Broad-bill; Blue-bill; Black-head; Raft Duck 

 (Aytltya niarila). The commonest Duck of our bays, where it is sometimes 

 seen in great numliers. It appears from the north about October i and r^-mains 

 until its feeding grounds are frozen over, returning as soon as the ice breaks in 

 the early spring. 



Lesser Scaup Duck ; Little Blue-bill ; Creek Broadbill ; Raft Duck {Aythya 

 aflinis). Not as common as the preceding, with which its range in the main 

 agrees. 



Riiig-necked Duck {Aythya collans). North America, breeding only in 

 the interior from Iowa northward. It is here a very rare, irregular transient 

 visitant. The last record is that of Braislin (Auk. XVI, 1899, p. 191) who 

 mentions a specimen from Great South Bay. 



Fig. 5. Can\as-b.\ck. 



Fig. 0. Redhead. 



American Golden-eye; Whistler (Clangula clangtda aniencana) . In 

 favorable localities within our limits the Whistler is a not common migrant 

 and winter resident. 



Bufflehead ; Buttcrball ( r/u(r;7(')(i-//a albcola). A not uncommon migrant 

 and winter resident. 



Old-squaw; Old-wife; South-southerly {Harclda hycinalis). A common 

 winter resident. 



Harlequin Duck ( Histrionicns histrioiiicus). Breeds from Newfoundland 

 northward, and winters southward to New Jersey. A very rare winter visi- 

 tant off our coast (Butcher, Auk, III, 1886, p. 434; VI, 1889, p. 134). 



The Labrador Duck (Camptolaiiims labradoriiis) . whicli formerly in- 

 habited the Atlantic Coast, breeding from Labrador northward and wintering 

 southward to New Jersey, is doubtless now extinct. The Labrador Duck was 

 apparently once a not uncommon winter bird on Long Island. In a paper by 

 William Dutcher (Auk, VIII. 1891, p. 201 : see also Auk, XI, 1894, pp. 41. I75. 

 176.) summarizing our knowledge of its life-history and enumerating the extant 

 specimens, Mr. George N. Lawrence is quoted as saying: "I recollect that about 



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