108 NORTH AMERICAN BIRDS. 
round), middle of back, scapulars, tertials and secondaries glossy blue-black ; scapu- 
lars striped with satiny white, and tertials with inner webs wholly of this color; 
all the wing-coverts, anterior scapulars, and sides of back, pure white; speculum 
rich dark violet or violet-blue, tipped with white; lower parts deep tawny, becom- 
ing dusky or blackish on belly and fading into a more buffy or ochreous tint on 
chest, sides, and flanks. Adult female: Above dusky and fulvous, the former pre- 
vailing ; head and neck light brownish, speckled with dusky ; chest and breast light 
rusty brown, irregularly spotted or barred with dusky ; belly uniform sooty brown; 
wing-coverts dusky, tipped with brownish gray; falcate tertials mostly dusky, and 
speculum much less brilliant than in the male. Young: Similar to adult female, 
but tertials much less falcate, and speculum dull dusky, with little if any metallic 
lustre. Length 16.00-18.00, wing 8.00-8.50, culmen 1.40-1.45. Eygs 2.30 x 1.62, 
varying from pale olive-buff to pale grayish olive-green or pale dull pea-green. 
Hab. Arctic and subarctic coasts of northern hemisphere; Aleutian Islands, east to 
Unalashka, Kadiak, and Fort Kenai on the Alaskan coast. 
157. E. stelleri (Pauu.). Steller’s Duck. 
Genus ARCTONETTA Garay. (Page 87, pl. XXVI,, fig. 1.) 
Species. 
Adult male in winter: Satiny “pad” encircling eye, dull white, bordered ante- 
riorly and posteriorly by a vertical black line; lores and forehead covered by a 
“cushion” of stiffened feathers (like the “ pile” of velvet plush), whitish anteriorly, 
shading into olive-green and this into light greenish buff; crown and occiput cov- 
ered by a cowl or hood of pendent, stiffened, hair-like feathers of a light olive- 
green color; a broad stripe of darker green beneath the eye; rest of head and neck 
white ; lower parts, rump, etc., plain plumbeous drab, or dark smoky gray; entire 
back, scapulars, wing-coverts (except greater), falcate tertials, and patch on each 
side of rump, yellowish white; bill orange (in life). Adult female: Above barred 
with light fulvous and black; lower parts similar, the abdomen, however, plain 
grayish brown; head and neck light grayish buff, finely streaked with dusky, the 
throat, however, nearly immaculate; wings grayish brown, the greater coverts 
and secondaries indistinctly tipped with whitish. Length about 21.50, wing 10.00, 
culmen 1.00. ggs 2.57 x 1.77, pale olive-buff, varying to pale grayish olive-green 
or pea-green. Hab. Coast of Alaska, from Norton Sound to Point Barrow. 
158. A. fischeri (Branpr). Spectacled Eider. 
Genus SOMATERIA Lxzacu. (Page 87, pl. XXV., fig. 6; pl. XXVL,, fig. 3.) 
Species. 
Common Cuaracrers.—Adult males with the plumage pied black and white 
(the lower parts chiefly black, the upper surface mostly white), the breast more 
buff or cream-colored, the head varied with light green, black, ete. Females and 
young with the plumage barred with dusky and pale fulvous or rusty, the head and 
