24 



64 Aythya marila nearctica Stejn. AMERICAN SCAUP 

 DUCK ; BROAD-BILL; BLUE-BILL ; BLACK-HEAD ; RAFT DUCK. (148.) 

 North America, breeding in the interior from Manitoba northward- 

 It is the commonest Duck of our bays where it is sometimes seen 

 in great numbers. It appears from the north about October i, 

 and remains until its feeding grounds are frozen over, returning as 

 soon as the ice breaks in the early spring. 



65. Aythya affinis (Eyt^). LESSER SCAUP DUCK ; LITTLE 

 BLUE-BILL ; CREEK BROAD-BILL ; RAFT DUCK. (149.) Not so 

 common as the preceding, with which its range in the main agrees- 



66. Aythya collaris (Donov.\ RING-NECKED DUCK. (150.) 

 North America, breeding only in the interior, from Iowa north- 

 ward. It is here a very rare irregular transient visitant. 



67. Glaucionetta clangula americana (JBonap.\ AMERICAN 

 GOLDEN-EYE; WHISTLER. (151.) North America; breeding from 

 Manitoba and Maine northward, and wintering from the southern 

 limit of its breeding range to the West Indies. In favorable 

 localities within our limits the Whistler is a not uncommon migrant 

 and winter resident. 



68 Charitonetta albeola (Linn .). BUFFLE-HEAD ; BUTTER- 

 BALL. (153.) Breeds from Iowa and Maine northward, and winters 

 from near the southern limit of its breeding range to the West 

 Indies. It is a not uncommon migrant and winter resident in this 

 vicinity. 



69. Clangula hyemalis (Linn.). OLD-SQUAW; OLD-WIFE; 

 SOUTH-SOUTHERLY. (154.) Breeds in the far north and winters 

 southward to Virginia. With us it is a common winter resident. 



70. Histrionicus histrionicus (Linn.). HARLEQUIN DUCK. 

 (155.) Breeds from Newfoundland northward, and winters south- 

 ward to New Jersey. A very rare winter visitant off our coast. 

 (See Dutcher, Auk, III, 1886, p. 434; VI, 1889, p. 134.) 



Camptolaimus labradorius (Gmel.\ LABRADOR DUCK. 

 (156.) "Formerly Northern Atlantic coast, from New Jersey (in 

 winter) northward, breeding from Labrador northward." Doubt- 

 less now extinct. The Labrador Duck was apparently once a not 

 uncommon winter bird on Long Island. In a paper by Mr. William 

 Dutcher (Auk, VIII, 1891, p. 201), summarizing our knowledge of 

 its life-history and enumerating the extant specimens, Mr. George 



