22, VIREONID#, VIREOS.—GEN. 53. 
17, f. 6; Nurr., i, 305; Aup., iv, 144, pl. 239; Bp.,340, and Rev. 347. 
(V. cassinii Xantus, Proc. Phila. Acad. 1858, 117; Bo., 340, pl. 185f-ae 
1s:tiot differents). “al eh Saas se Bol le a OEE 
Plumbeous Vireo. Weaden-gray, rather brighter and more ashy on the 
crown, but without marked contrast, faintly glossed with olive on rump; 
a conspicuous white line from nostril to and around eye, and below this a 
dusky loral stripe; below, pure white, sides of neck and breast shaded with 
color of the back, flanks, axillars 
and crissum with a mere trace of 
olivaceous, or none; wing and tail 
dusky, with conspicuous pure white 
edgings and cross-bars. Size of 
the last or rather larger ; bill nearly 
Fic. 67. Plumbeous Vireo. 4; tarsus %; middle toe the same; 
spurious quill about 2, one-third as long as the second quill. Central Plains 
to the Pacific, U. S., and especially Southern Rocky Mountains, where it is 
abundant. A large stout species, a near ally of solitarius, but nearly all 
the olivaceous of that species replaced by plumbeous, and the yellowish by 
white, so that it is a very different looking bird. It may prove only a 
variety, but I have seen no intermediate specimens, and cannot reconcile 
the obvious discrepancies, upon this supposition. Cours, Pr. Ac. Phila., 
1866, 74; Bp., Rev. 349; Coor., 119; Extior, pl. 7. . . PLUMBEUS. 
Gray Vireo. With the general appearance of a small faded specimen of 
plumbeus: leaden-gray, faintly olivaceous on the rump, below white, with 
hardly a trace of yellowish on the sides; wings and tail hardly edged with 
white; no markings about head except a whitish eye-ring. 5}; extent 83; 
wing and tail, each, 24; tarsus nearly $; middle toe and claw hardly over 4; 
tip of inner claw falling short of base of middle claw; tail decidedly 
rounded; spurious quill 3, half as long as the second primary, which latter 
is not longer than the eighth. Arizona. If these peculiar proportions of the 
single known specimen are constant, the species is distinct from any other. 
It is our plainest colored species, resembling plwmbeus, but apparently 
more closely allied to the smaller rounder-winged species like novebora- 
censis and especially puszllus; the toes are almost abnormally short, and 
the tail as long as 
the wing. Cours, 
Proc. Phila. Acad. 
SciaelS6Gsaipetors 
Bp.) ekeyva. wool 
Coop. 125 ; ELuror, 
pl. 7. . VICINIOR. 
White-eyed Vireo. 
Above bright olive- 
green, including crown; a slight ashy gloss on the cervix, and the rump 
showing yellowish when the feathers are disturbed ; below white, the sides , 
Fic. 68. White-eyed Vireo. 
