113 NORTH AMERICAN BIRDS. 



brownish gray, the feathers narrowlj^ tipped with graj-ish white; lower 

 parts palo grayish, in conspicuous and abrupt contrast with blar.k of 

 chest, and graduallj' fading into the Avhite of anal region and erissum. 

 Young : Similar to adult, but wing-coverts and secondaries broadlj- 

 tipped with white, forming conspicuous bars ; white on sides of neck 

 reduced to small specks ; lower parts paler and more uniform. Length 

 23.50-30.50, wing 12.30-13.00, culmen 1.20-1.50, tarsus 2.10-2.40. E'j(js 

 2.92 X 2.02. JJab. Sea-coasts of Europe and eastern North America, 

 breeding only within the Arctic circle ; casual or occasional in upper 

 Mississippi Valley during winter. 



173. B. bernicla (Linn.). Brant. 

 6'. Middle of nock encircled by a broad white collar, interrupted only behind ; 

 upper parts nearly uniform dark sooty brown ; lower parts dark sootj- 

 slate, not distinctly, if at all, contrasted with black of chest, but 

 abruptly defined against white of anal region and erissum. Young : 

 Similar to adult, but collar indistinct or obsolete, the larger wing- 

 coverts and secondaries broadly tipped with white, and feathers of 

 sides and flanks uniform brownish gray, without white tips. Length 

 22.00-29.00, wing 12.70-13.50, eulmen 1.20-1.35, tarsus 2.20-2.50. Eggs 

 2.87 X 1-87. Hah. Western Arctic America, migrating south, in winter, 

 along Pacific coast to Lower California, and very rarely straggling to 

 Atlantic coast (Long Island). 



174. B. nigricans (T>.vwr.). Black Brant. 



Gencs PKILACTE Bannister. (Page 88, pi. XXVIIL, fig. 4.) 



Species. 



Adult: Head and hind-neck white, the former frequently stained with orange- 

 rufous; throat and neck (except behind) plain dusky; basal half of tail slate-color, 

 terminal half white; rest of plumage bluish gray, handsomely barred with black 

 and white, these markings very sharply contrasted on upper parts, but much less 

 distinct on lower, which are more or less tinged with fulvous. Young: Similar to 

 adult, but with head and whole neck dusky, the former speckled, especially on top, 

 with white; markings in general less distinct than in adult. Length about 26.00, 

 wing 14.30-15.75, culmen 1.40-1.65, tarsus 2.60-2.85. middle toe 2.40-2.50. Eggs 

 3.16 X 2.12. Ilab. Coast of Alaska, north of the peninsula, chiefly abf)ut the shores 

 of Xorton Sound and valley of the lower Yukon. 



176. P. canagica (Sev.vst.). Emperor Goose. 



Gents DENDROCYGNA Sw.mnson. (Page 87, pi. XXV., fig. 4.) 



Species. 



(7*. Plumage much spotted or speckled, without large areas of uniform color. 



Above dull brown, the feathers paler at tips; neck streaked with pale 



