VIREONIDE, VIREOS.—GEN. 53. 123 
of the breast and belly, the axillars and crissum, bright yellow; a bright 
yellow line from nostrils to and around eye; lores dusky; two broad yel- 
lowish wing-bars ; inner secondaries widely edged with the same; bill and 
feet blackish-plumbeous ; eyes white. About 5 inches long; wing 24-24; 
tail 24; spurious quill ?, half as long as the second, which about equals the 
eighth; tarsus about #; middle toe and claw 4; bill nearly 4. A small, 
compact, brightly-colored species, abundant in shrubbery and _ tangled 
undergrowth of the Eastern United States; noted for its sprightly manners 
and emphatic voice; eggs 4-5, white, —— 
speckled at large end. Wruts., ii, 266, pl. ; cameras 
18; Nurr., i, 306; Aup., iv, 146, pl. 240; 
Bp., 338, and Rev. 354. NOVEBORACENSIS. 
Hutton’s Vireo. A species or variety LM y, 
similar to the last, but differing much as 
flavoviridis does from olivaceus, in having 
the under parts almost entirely yellowish ; second quill about equal to the 
tenth. Lower California and southward. An accredited species, but one 
TI have not tested, and cannot endorse. Cass., Proc. Acad. Phila. 1851, 
iene ple let. 1); Bp, d39pl..(8; 1.125 Rev. 857. . 9. MUTTONT 
Bell’s Vireo. Olive-green, brighter on rump, ashier on head, but without 
decided contrast ; head-markings almost exactly as in gilvus; below, sul- 
phury yellowish, only whitish on chin and middle of belly; inner quills 
edged with whitish; two whitish wing-bands, but one more conspicuous 
than the other. Hardly or not 5 
long; wing little over 2; tail under 
2; spurious quill about 2 the second, 
which equals or exceeds the seventh. 
A pretty little species, like a mini- 
ature gilvus, but readily distin- 
guished from that species by its 
small size, presence of decided wing-bars, more yellowish under parts, and 
different wing-formula. Middle region, U. S., west to the Rocky Moun- 
tains, east to Kansas (Cowes) and Illinois (idgway) ; an abundant species, 
inhabiting copses and shrubbery in open country, with much the same 
sprightly ways and loud song of 
noveboracensis. AuwD., vii, 333, pl. 
485; Bp., 337; Rev. 358. BELLII. 
Least Vireo.  Olivaceous-gray, 
below white, merely tinged with 
yellowish on the sides ; head-mark- 
ings obscure ; wing-bands and edg- 
ings, though evident, narrow and whitish; no decided olive or yellow any- 
where. Size of belli; wing and tail of equal lengths, little over 2 inches ; 
bill $; tarsus 3; middle toe and claw 4; spurious quill about $ as long as 
the second, which is intermediate between the seventh and eighth. A small 
Fic. 69. Hutton’s Vireo. 
Fic. 70. Bell’s Vireo. 
i11G. 71. Least Vireo. 
i. 
