98 VIREO FLAVIFE0N8, TELLOW-THEOATED VIEEO. 



1842, 149, pi. 241.— GiR., B. L. I. 1844, 161.— Woodh., Sitgr. Rep. 1853, 76.— Bd., , , 



B. N. A. 1858, 335.— CouES, Key, N. A. Birds, 187;!, 120, fig. 63.— Tmppe, Pr. . 

 Bost. Soc. XV, 1872, 236 (Iowa, breeding).— Snow, B. Kans. 1873, 5 (Kansas, .- 

 breeding) ; and of most United States writets. 3 / / * 



Vircosylvia gilva, Cass., Pr. Phila. Acad. 1851, 1.53.— SCL., P. Z. S. 1850, 298 (Cordova) ; j, , . 

 1858, 302 (OaxacaV— Bd., Rev. 1866, 342.— Sujiich., Mem. Bost. Soc. i, 1869, i 



548 (Vera Crnz ; migratory).— B. B. & R., N. A. B. i, 1874, 368. [ -- 



Museicapa melodia, WiLS., Am. Orn. v, 1812, 85, pi. 42, f. 2. 



b. swainsoni. 



Fireo swainsoni, Bd., B. N. A. 1858, 336 (in text).— CouBS, Ibis, 186.5, 164 (Arizona).— 



CouES, Pr. Phila. Acad. 1866, 73 (Arizona). 

 Fireosylvia swainsoni, Bd., Rev. 1866, 343.— Aiken, Pr. Bost. Soc. 1872, 198 (Colorado).— 



Stev., U. S. Geol. Sarv. Ter. 1870, 464 (Wyoming). 

 Vireosylria gilva var. swainson i, Coop., B. Cal. i, 187(^116.— B. B. & R., N. A. B. i, 1874, 371. 

 Virco gilvus var. stcSinsoni, Cooes, Key, 1872, 121, fig. 64. 

 Viieo gilvus, Coor. & Suck., N. H. Wash. Ter. 1859, I88.-C00P., Am. Nat. iii, 1869, 35 



(Rocky Mountains). — Allen, Bull. M. C. Z. iii, 1872, 156, 176 (Kansas, Colorado, 



Utah ; includes both varieties). 



Hal). — Of true gilvus, Eastern North America to high central plains ; north to Fort 

 Simpson. Var. sioainsoni, wooded regions from Plains to Pacific, .United States. 



Lieutenant Warren's Expedition.— 4729, Missouri River; 5305, Fort Lookout. 



Later Expeditions. — 60769, Green River, Wyoming (var. swainsoni). 



Not obtained by Captain Raynolds' Expedition. 



These specimens are referable to the gilvus proper, excepting No. 60769. " sivainsoni" 

 seems to be scarcely distinguishable even as a variety. A supposed difiference in the 

 'ving-formula proves not to hold always. The bird is, however, paler and grayer, like 

 ■>thers from the same region. 



The Warbling Vireo is stated by Dr. Hayden to be abundant along 

 the wooded bottoms of the Missouri, where, however, I never observed 

 it, though I found it quite common ou the Red Eiver of the North. It 

 is numerously represented throughout the greater part of the United 

 States east of the Mississippi ; reaching the middle districts about the 

 middle of April, and remaining through the greater part of September, 

 ■breeding in gardens and the streets of cities, among the high shade 

 trees, rather than in the forests. 



C 



VIEEO FLAVIFEONS, Vieill. 



Teilow-throated Vlreo. 



Vireo flavifrons, Vieill., Ois. Am. Sept. i, 1807, 85, pi. 54.— Bp., Svu. 1828, 70.— NuTT., 

 Man. i, 1832, 302.— Add., Orn. Biog. ii, 1834, 119 ; v, 1839, 428 ; pi. 119 ; Syn. 

 1839. IPO ; B. Am. iv, 1842, 141, pi. 238.— Gm., B. L. I. 1844, 159.— Cass., Pr. 

 Phila. Acad. 1851, 149.— WooDU., Sitgr. Rep. 1853, 82 (Texas and Indian Terri- 

 tory).— ScL., P. Z. S. 18.57. 227 (Vera Cruz) ; 1860, 2.57 (Orizaba).— Scl. & Salv., 

 Ibis, 1859, 12 (Guatemala).- Cab., J. f. 0. iii, 468 (Cuba) ; 1860, 405 (Costa 

 Rica).- GuNDi,., J. f. 0. 1861, 324 (Culia).- Bd., B. N. A. 1858, 341.— Hamlin, 

 Eep. Maine Board Agric. 1865 (Waterville ; only Maine record). — McIlwk., Pr. 

 Ess. Inst. V, 1866, 87 (Hamilton, C. W., in summer). — Trippe, Pr. Ess. Inst, vi, -> ' 

 1871 117 (? Minnesota).— Snow, B. Kans. 1873, 5 (breeding).— Coues, Key, /if*-'<^ 

 1872, 121, tig. 65. -._ ■_. 



Lanivir-eo flavi/rons, Bd. — Lawe., Ann. Lvc. ix, 1868, 90 (Costa Rica).^ALLEN, Bull. ■*, '^ 

 M. C. Z. ii, 1871, 279 (wintering in Florida).— B. B. & E., N. A. B. i, 1874, 379. Jt ,7 . ' 



Fircosj/Zm^ffiiv/rons, Bd., Rev. 1866, 346. " ' 



Muscicapa sglaeola, WiLS., Am. Orn. i, 1808, 117, pi. 7, f. 3. < ! • , 



HaJ). — Eastern United States and British provinces, west to Kansas only. Cuba (rare). J't 6 '6 

 Mexico and Central America, to Costa Eica and Guatemala. Breeds from Maryland 

 and Virginia northward. Stated to winter in Florida, as it does further south. 



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