It was found to be common about Laramie Peak, by Dr. R. Hitz, and was also met with in winter on the plains at Colima, Mexico, by Xantus.
It was seen in the summers of 1868 and 1869, by Mr. Ridgway, among the cedar and nut-pine woods on the slopes and among the brushwood in the cañons of the East Humboldt Mountains, being most partial to the former situations. There, too, it undoubtedly breeds, as in the latter part of July young birds, unable to fly, were met with by him. He also states that the
common notes of this Vireo very closely resemble those of the Western Wood Wren (Troglodytes parkmanni).
Lanivireo flavifrons, Baird.
YELLOW-THROATED VIREO.
Vireo flavifrons, Vieill. Ois. Am. Sept. I, 1807, 85, pl. liv.—Aud. Orn. Biog. II, 1834, pl. cxix.—Ib. Birds. Am. IV, pl. ccxxxviii.—Cassin, Pr. A. N. Sc. 1851, 149.—Sclater, P. Z. S. 1857, 227 (Vera Cruz); 1860, 257 (Orizaba).—Sclater & Salvin, Ibis, I, 1859, 12 (Guatemala).—Cab. Jour. III, 468 (Cuba; winter).—Gundlach, Cab. Jour. 1861, 324 (Cuba; rare).—Cab. Jour. 1860, 405 (Costa Rica). Vireo (Lanivireo) flav. Baird, Birds N. Am. 1858, 341. Vireosylvia (Lanivireo) flavifrons, Baird, Rev. 346. Muscicapa sylvicola, Wils. Am. Orn. II, 1810, 117, pl. vii, f. 3.
Vireosylvia flavifrons.
2217
Sp. Char. (No. 28,390.) Head and neck above and on sides, with interscapular region, bright olive-green. Lower back, rump, tail, and wing-coverts ashy. Wings brown, with two white bands across the coverts, the outer edges of inner secondaries, and inner edges of all the quills, with inside of wing, white. Outer primaries edged with gray, the inner with olive. Tail-feathers brown, entirely encircled by a narrow edge of white. Under parts to middle of body, a line from nostrils over eye, eyelids, and patch beneath the eye (bordered behind by the olive of neck) bright gamboge-yellow; rest of under parts white, the flanks faintly glossed with ashy. Lores dusky. Bill and legs plumbeous-black.
No spurious primary evident: second quill longest; first a little shorter than third.