ANATiD^, DUCKS. — GEN. 263, 264, 265, 266-8. 291 



263. Genus HARELDA Leach. 



' '' Long-tailed JDucJc. South-southerly. Old-ivife. Tail of 14 narrow 

 pointed feathers, in the $ in summer the central ones very slender and much 

 elongated, nearly or quite equalling the wing; nail of bill occupying the 

 whole tip ; seasonal changes remarkable. $ in summer with the back and 

 the long narrowly lanceolate scapulars varied with reddish-brown, wanting 

 in winter, when this color is exchanged for pearly-gray or white ; general 

 color blackish or very dark brown, below from the breast abruptly white ; 

 no white on the wing ; sides of head plumbeous-gray ; in winter the head, 

 neck and body anteriorly, white, but the gray cheek-patch persistent, and a 

 large dark patch below this ; bill at all seasons black, broadly orange-barred. 

 $ without lengthened scapulars or tail feathers, the bill dusky greenish, and 

 otherwise different ; l)ut recognized by presence of head- and neck-patches, 

 and absence of white on the wing. Length 1.5-20, or more, according to 

 tail; wing 8-9. N. Am., northerly, coastwise; U. S. only in winter; 

 common. Also Northern Europe. Wils., viii, 93, pi. 70, f. 1, 2 ; Nutt., 

 ii, 453 ; Aud., vi, 379, pi. 410; Bd., 800 glacialis. 



264. Genus CAMPTOL^MUS Gray. 



x-jj CI Labrador, or Pied Luclc. Bill enlarged towards end by membranous 

 expansion, the nostrils in its basal third ; cheek feathers rigid ; $ with the 

 body and primaries black ; rest of the wing, with neck aud head, white, Avith 

 a black collar and lengthwise coronal stripe ; 9 ijlumbeous gray ; about 2 

 feet long; wing 9. N. Atlantic Coast, to middle districts iu winter; 

 formerly common, now apparently rare. Wils., viii, 91, pi. 69, f. 6; 

 Nutt., ii, 428; Aud., vi, 329, pi. 400; Bd., 803. . . . labkadorius. 



265. Genus HISTEIONICUS Lesson. 



/— / Harlequin Duck. Bill very small and short, rapidly tapering to tip, which 

 is wholly occupied by the nail, and with a membranous lobe at its base ; 

 tertiaries curly ; plumage singularly patched with different colors ; $ deep 

 leaden-bluish, browner below; sides of head, and of body posteriorly, 

 chestnut ; coronal stripe and tail black ; a white patch at base of bill, 

 another on side of occiput, of breast and of tail, two transverse ones on 

 side of neck, forming a nearly complete ring, and several on the wings ; 

 a white jugular collar; speculum violet and purple; 9 dark brown, paler 

 below, whitening on belly ; a white patch on auriculars and before eye. 

 15-18; wing 8; Northwestern Europe; N. Am., northerly, and entirely 

 coastwise, U. S. only in winter, not abundant. Wils., viii, 139, pi. 72, 

 f. 4; Nutt., ii, 448 ; Aud., vi, 374, pi. 409 ; Bd., 799. . . torquatus. 



266-8. Genus SOMATERIA Leaeh. 



*Bill without frontal process, not feathered to the nostrils. (Polysticta.) 

 j-^j j Stellefs Eider. Head white, with a pearly gray tinge, a green occipital 



