BIRDS UF NORTH AMERICA. ; 739 
ke @ ps 3 = 
444. Larus atricilla, Linn. — Black-teaded Gull, JFilson, p. 652. 
Larus atricilla, Bonap. Syn, p. 35%, Mutt. ii. 291. Aud. iv. 118; plate 3145 Syn. 
p. 324. 
445. Larus Franklivii, Rich. — Franklin’s Rosy Gull. 
Bill and feet, vermilion; neck, rump, tail, and under plumage, white ; 
latter, tinged with red; black hood on nape; upper parts, bluish gray ; 
quills, terminated with white. Male, 17. Habitat, Fur Countries.” ~~ 
Larus Franklinii, Rick. § Swain. ii. 424. Aud. v. 323; Syn. p. 325. 
446. Larus tridactylus, Linn. — Kittiwake Gull. 
Bill, greenish yellow; feet, black ; head, neck, rump, and lower parts, 
white; back and upper surface of wings, grayish blue; tips of first five 
quills, black ; fifth, with a small white tip; tips of the others, white. 
Jdult, 18, 364. Nests on ledges of rocks. Eggs, three, olive green 
spotted with brown, 24 by 1§. 
Larus tridactylus, Bonap. Syn. p. 359. Rich. §& Steain. ii, 423. Mutt. ii. 298. ud. 
iii. 186 ; plate 224; Syn. p. 326. 
447. Larus eburneus, Gmel.— Ivory Gull. 
Bill, yellow; feet, black; plumage, white. -4dult, 14, 91. Habitat. 
accidental on the American coast. 
Larus eburneus, Bonap. Syn. p. 360. Rich. § Swain. ii. 419. Nuét. ii. 301. Aue 
iii. 571; plate 287; Syn. p. 326. 
448. Larus zonorhynchus, Rick. — Common American Gull. 
Bill, greenish yellow, with broad band of black; feet, greenish yellow 
plumage, white, exceptiig wings and back, which are light grayish blue. 
Adult, 20,48. Habitat, throughout North America. Eggs, four, 2% by 18. 
dark cream color, blotched with different shades of purple, umber, and 
black. 
Larus canus, Rich. & Swain. ii. 420. Nutt. ii. 300. — Larus brachyrhynchus, Rich. 
& Swain. ii. 422.— Larus zonorhynchus, Rich. § Swain. ii. 421. Aud. iii. 98; 
v. 638 ; plate 212; Syn. p. 327. 
449. Larus leucopterus, Fabr. — White-winged Silvery Gull. 
Bill, gamboge yellow, orange spot near end of lower mandible; feet, 
flesh color; plumage, white, except back and wings, which are ligh 
grayish blue. Adult, 26,50. Habitat, from New York to the Arctic Seas. 
Larus leucopterus, Bonap. Syn. p. 361. Rich. & Swain. ii, 418. Nutt. ii. 305. 
Aud. iii. 553; plate 272 ; Syn. p. dv, 
450. Larus occidentalis, 4ud. — Western Gull. 
Bill, yellow, with orange red patch on lower mandible; feet, flesh 
color ; head, neck, lower parts, rump, and tail, white; back and wings, 
grayish blue. Male, 27. 
‘ Larus occidentalis, 4ud. v. 320; Sym. p. 325. 
451. Larus argentatus, Brunnich.—Herring Gull. 
Bill, gamboge yellow, with orange red patch on lower mandible ; feet, 
flesh color; head, neck, lower parts, rump, and tail, white; back and 
Wings, grayish blue ; tips of quills, white, or with white spots. Male, 23 
53. Habitat>atong the whole coast. Nests on trees or on the ground. 
Eggs, three; 3 by 2; dul. yellowish, blotched with umber. 
Lars areentatas, Benap Syn. p. 360. Watt. ii. 304. Aud. ii. S825 v. 638; plate 
BOL; Syw. p. Se. 
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