LARIDiE— THE GULLS AND TERN'S. 335 



Larur iChroicocephalus) franklinii Bbdch. J. f. 0. 1853,2S9.— COUES. B. N. W. 1874,633. 



Chroicoceptiatua iranklinii Lawb. in Baird's B. N. Am. 1858.8J1.— Baied, Cat. N. Am. B. 

 1859, No. 668.— CouES, 2d Check List, 1882. No. 787. 

 Laruf pipUcan Waol. Isis, 1841,515. 

 Larus cucullatus Licht. Nomenel. 1851,98 no description). (Mexico.) 



Larus [Chroicoceplialust cucullatus Bbuch. J. f. O. 1855, 290.— La WE. In Baird's B. N 

 Am. 1858, 851.— Baied. Cat. N. v m. B. 1859. No. 669. 

 Larus cinereocauditns ParL & Lando. Wiogm. Archlv. 1861, 293 (Chili). 

 ? Larus iChroicocepkalus) kitllilzii Bbuch, J. f. 0. 1853.104. 

 Chroicocephalus schimperi Bbuch, L o. (not of Schleo., 1863,1 wliich=i. saundersi 



SWINHOE). 



Hab. Tiie interior of North America, chi-fly the Mi-si-ssippi Valley and northward, 

 breeding from Dalcota. Uint^esota. etc., northward; Central and South America, durine mi- 

 grations, as far as Chili: part of the West Indioa. 



8p. Chab. Adult, in summer: Head and upper part of the neck plumbeous-black 

 (more plumbeous 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- 

 whit", the neck and lower parts with a deep tiniie of delicate rose-pink in fresh specimens. 

 Mantle deep bluish plumbeous, a little lighter th in in L. atricilla, the secondaries and ter- 

 tials broadly tipped with white. Tail while, the four to six central feathers ting'd wi'h pale 

 Krayish blue, deepfst on the intermedin. Primaries bluish gray, the shafis white, the five 

 outer quills marked with a subterminal space of bia-ik, varying in extent from nearly 200 

 Inches on the second quill to about .50 on the fifth, each quill broadly lipped with white, 

 this occupying on the first about 1.50 inches of the terminal portion, on the rest less than 

 .50 of an inch, the bluish gray of I he basal portion if the quills becoming nearly or quite 

 white adjoining the biack,and the shall of the black portion al.^o black; remaining qui lis liglit 

 grayish blue, broadly, but not abruptly, lipped wiih white, ho sixth sometimes marked 

 with a subterminal black spot or bar. Bill de p r<".d. with a more or less distinct darker 

 subierminal band; eyelids red; feetdeepred. Adult, in winter: tjimilar, but head and 

 neck white, the occiput, with orbital and auricular rPcion*, grayish dusky. Bill and feet 

 brownish, the former tipped w.th orange-reddish, i'oung. ft'- st plumage: Top and sides 

 of the head (except forehead and lores), back, and scapulars grayish brown, th longer 

 scapulars bordered terminally with pale grayish t>ufl; wing-coverts bluish gray, tinged 

 with grayish brown; secondaries dusky, edged with pa'e g ayi^h blue, and broadly tipped 

 with white; primaries dusky, the innermost ones more plumbeous, all rather broadly tipped 

 with white. Central portion of the rump uniform li^ht bluish gray; lateral and posterior 

 portions of the rump, upper tail-coverts, entire lower parts, forehead, lores, and eyelids 

 white. Bill brownish, dusky terminally ; feet brown (in skin). 



Total length, about 14.UU inches; extent. 35 UO: wing, 11.23; culmen, 1.30; depth Of bill 

 through nostrils, .35; tarsus, l.CV; m.ddle toe, with cluw, 1.60. 



Larus Philadelphia (Ord). 



BONAPABTE'S GULL. 



Sterna Philadelphia Obd, Guthrie's Geog. 2d Am. ed. II, 1815, .'n9. 



Chroicocephalus phihdelphia LAwn. in Baird's li. N. Am. 1858, 8.'i'2.— Baibd. Cat. N. Am. 



B. 1859. No. 67»,— Newton. P. Z. 8. 18TI.27. pi. 4, fig. 6 (egg).— CouKS, Pioc. Acad. NaL 



8el..Phila. 1862, 310; 2J Check List, 1882, No 7S8.-Uidgw. Orn. 40 h I'ar. 1-77. 6X). 

 Larus i-hiladelphia Obat. List Brit. B. I*i63. 2:r. (Cireat Britain).— CoUES. Key. 1872.316; 



Check List. 18T3. No. 556.-B. B. & B. Water B. N. Am. 11. 1884, 260.- A. 0. 0. Check 



List, 1886, No. 60.— Bioow. Man. N. Am. B. 1887. 36. 



