258 



LONG-WINGED SWIMMERS — LONGIPENNES. 



Larus Fran klini. 



FRANKLIN'S EOSY GULL. 



Larus alricilla, Sabi.ne, App. Franklin's Polar Sea, 1823, 695 (not of Linn. 1758). 



Larus Franklinii, Sw. & Rich. F. B. A. II. 1831, 424, pi. 71. — Am. Orn. Biog. V. 1839, 324 ; 



Synop. 1839, 325 ; B. Am. VII. 1844, 145. — Coiies, Key, 1872, 316 ; Check List, 1873, no. 



555. _ Saunders, P. Z. S. 1878, 195. — Ridgw. Norn. N. Am. B. 1881, no. 674. 

 Larus (Chroicocephalus) FranMinii, Bruch, J. f. 0. 1855, 289. — Coues, B. N. W. 1874, 653. 

 Chroicocephalus Franklinii, Lawk, in Baird's B. N. Am. 1858, 851. — Baird, Cat. N. Am. B. 1859, 



no. 668. — Coues, 2d Check List, 1882, no. 787. 

 Larus pipixcan, Wagl. Isis, 1831, 515. 



Larus cucullattis, Licut. Nomencl. 1854, 98 (no description). (Mexico.) 

 Larus (Chroicocephalus) cucullutus, Bruch, J. f. 0. 1855, 290. — Lawu. in Baird's B. N.Am. 1858, 



851. — Baird, B. N. Am. 1859, no. 669. 

 Larus cinerco-caudatus, Fiiil. k Lanbb. Wiegm. Archiv, 1861, 293 (Chili). 

 ? Larus (Chroicocephalus) Kittlitzii, Bruch, J. f. 0. 1853, 104. 

 Chroicocephalus Schimpcri, Bruch, 1. c. (not of Schleg. 1863, which = L. Saundersi, Swinhoe). 



Hab. The interior of North America, chiefly the Mississippi Valley and northward, but breed- 

 in"- mostly north of the United States ; Central and South America, during migrations, as far as 

 Chili ; part of the West Indies. 



Adult, summer plumage. 



Sp. Chae. Adult, in summer: Head and upper part of the neck plumbeous-black (more plum- 

 beous anteriorly) ; an elongated white spot on each eyelid; lower part of the neck (all round), 



entire lower parts, lower part of the rump, and upper 

 tail-coverts snow-white, the neck and lower parts 

 with a deep tinge of delicate rose-pink in fresh spe- 

 cimens. Mantle deep bluish plumbeous, a little 

 lighter than in L. atricilla, the secondaries and tertials 

 broadly tipped with white. Tail white, the four to 

 six central feathers tinged with pale grayish blue, 

 deepest on the intermedia?. Primaries bluish gray, 

 the shafts white, the five outer quills marked with a 

 " L. cucullatus." subterminal space of black, varying in extent from 



nearly 2.00 inches long on the second quill to about 

 :i11 "ii the fifth, each quill broadly tipped with white, this occupying on the outer about 1.50 inches 

 of the terminal portion, on the rest less than .50 of an inch ; the bluish gray of the basal portion 



