. 
VIREONIDZ, VIREOS.—GEN. 53. 121 
but not one of them all can rival the tenderness and softness of the liquid 
strains of this modest vocalist. Not born to “waste its sweetness on the 
desert air,” the warbling vireo forsakes the depths of the woodland for the 
park and orchard and shady street, where it glides through the foliage of 
the tallest trees, the unseen messenger of rest and peace to the busy, dusty 
haunts of men.— Wits., v, 85, pl. 42, ae : 
ee 
PeeGeNUE 1, 300); Agb., iv, 149, pl. X 
241; Bo., 335, and Rev. 342.  iLvus. - 
Var. swarnsont. “Similar to V. gilvus, but 
smaller; colors paler; bill more depressed ; 
upper mandible almost black; 2d quill much 
shorter than 6th.” Barrp, Rev. 343; Coop., 
116; Extrort, pl. 7. Rocky Mountains to the 
Pacific, U. S. The Western form has been described as distinct, but I scarcely 
think the characters assigned will be found constant. In one of my Arizona skins 
the second quill is Jonger than it is in an Eastern specimen. 
Fic. 64. Western Warbling Vireo. 
Yellow-throated Vireo. Above, rich olive-green, crown the same or even 
brighter, rump insensibly shading into bluish-ash; below, bright yellow, 
belly and ecrissum abruptly white, sides 
anteriorly shaded with olive, posteriorly 
with plumbeous; extreme forehead, su- 
perciliary line and ring round eye, yel- 
low; lores dusky; wings dusky, with 
a the inner secondaries broadly white- 
edged, and two broad white bars across 
Fic. 65. Yellow-throated Vireo. 
tips of greater and median coverts; tail 
dusky, nearly all the feathers completely encircled with white edging; bill 
and feet dark leaden blue; no spurious quill; 52-6; wing about 3; tail only 
about 24. <A large, stout, highly-colored species, common in the woods of 
the Eastern United States. Wuts., i, 117, pl. 7,f. 3; Nurr., i, 302; Aup., 
ila pl. 2905 BD., 541, and Rev. 846. . - . . = . ELAVIFRONS. 
Blue-headed, or Solitary Vireo. Above, olive-green, crown and sides of 
head bluish-ash in marked contrast, with a broad white line from nostrils to 
and around eye, and a dusky loral line; below, white, flanks washed with 
olivaceous, and axillars and crissum 
pale yellow; wings and tail dusky, = ~e 
most of the feathers edged with white A =e 
or whitish, and two conspicuous bars = \ 
of the same across tips of middle and ‘f. 
greater coverts ; bill and feet blackish 
horn-color. 54 = 52 ; wing 23 23 ; tail Fic. 66. Blue-headed, or Solitary Vireo. 
24-24; spurious quill 4-3 long, about one-fourth as long as 2d. United 
States from Atlantic to Pacific, except perhaps Southern Rocky Mountains, 
where replaced by the next species; not rare, but not so common as oliva- 
ceus, flavifrons and noveboracensis; inhabits woodland. W4u1s., ii, 143, pl. 
KEY TO N. A. BIRDS. 16 
