740 SYNOPSIS OF 
452. Larus glaucus, Brunn. — Glaucous Gull. 
Bill, gamboge yellow, with carmine spot on lower mandib.e , feet, flesh 
color; head, neck, lower parts, rump, and tail; white ; back and wings, 
light grayish blue. Adult, 30. Habitat, Arctic Regions. 
Larus glaucus, Bonap, Syn. p. 361. Rich. § Swain. ii. 416. Nutt. 11.306. Aud. v. 
59; plate 396; Syn. p. 329. : 
453. Larus marinus, Linn. —Saddle-Back Gull. 
Differs from preceding principally in having back and wings of a dark 
slate color. Male, 293, 67. Habitat, the whole coast. Nests on the 
ground. Eggs, three, 24 by 2}, greenish gray, spotted with umber, pur- 
ple, and brownish black. | 
Larus marinus, Mutt. ii 308. Aud. ifi, 305 ; v.. 636; plate 249; Syn. p. 329, 
GENUS IV.—LESTRIS, Iiliger.—JAGER. 
454. Lestris pomarinus, Temm.— Arctic Jager. 
Bill, dull green; upper parts and sides of head, anteriorly, brownish 
black ; upper part of neck, yellowish white; rest, white, barred with 
brownish black; breast, white; sides, abdomen, and lower tail-coverts, 
white, barred with brownish black; back and wings, brownish black ; 
lower surface of wings, barred with white and dusky. Female, 204, 48. 
Habitat, from Massachusetts northward. - Nests near the edges of lakes. 
Eggs, two, or three, grayish olive, marked with blackish spots. 
Lestris pomarina, Bonap. Syn. p. 364. Rich. § Swain. ii.499, Nutt. ii. 315. Aud. 
iii. 396 5 v. 643; plate 253; Syn. p. 332. . 
455. Lestris Richardsonii, Swain — Richardson’s Jager. 
Bill, grayish black, tinged with blue above; feet, black; plumage, 
sooty brown, darker on head, primary quills, and tail; cheeks, and sides 
of neck, dull yellow; fore part of neck, and breast, white. Male, 184, 40. 
Habitat, from Massachusetts to the north.- Eggs, 2§ by 18, dull grayish 
yellow, patched with umber and faint purple. 
Lestris Richardsonii, Rich. § Swain. ii. 433. Nutt. ii. 319. Aud. iii. 503; plate 
272; Syn. p. 332. 
456, Lestris parasiticus, Zinn. — Arctic Jager. 
Bill, grayish black, tinged with blue above; feet, black; tarsus, yel- 
low ; neck and lower parts, white ; former, tinged with yellow ; upper and 
fore part of head, blackish brown; upper parts, blackish gray; primary 
quills and tail-feathers, brownish black; the shafts of the former, white. 
Male, 23,45. Habitat, the whole Atlantic coast. Nests on the ground. 
Eggs, two, dark oil green, with blotches of liver brown, 24 by 14. 
Lestris Buffonii, Bonap. Syn. p. 364. Rich. & Swain. ii. 430. Nutt. ii. 317.. Aud. 
ili. 470; Syn. p. 333; plate 267. - 
e 
GENUS V.— DIOMEDEA, Linn. — ALBATROSS. 
457. Diomedea chlororhynchos, Gmel.— Yellow-nosed Albatross. 
Bill, black, except ridge, tip of upper mandible, and crura of lower, 
which are yellow; feet, yellow; head and neck, ash gray; fore part of: 
back, shaded into ash gray; wings, brownish black ; hind part of back, 
rump, and upper tail-coverts, white ; tail, deep gray ; anterior lower part 
of neck, breast, sides, abdomen, lower tail-coverts, some of axillaries, and 
