BIRDS — LAN1IDAE VIREO VIRESCENS. 
333 
strongly marked greenish yellow of the sides in strong contrast to the white, which, on the 
breast, is only half an inch wide ; the bright sulphur yellow of the under wing instead of very 
pale sulphury white ; the color of the tail coverts is also characteristic. The whitish line over 
the eye has a much grayer cast. 
The resemblance to V. virescens is closer than to olivaceus ; it is, however, considerably 
larger ; the dark and light lines over the eye less sharply defined. The shade of green above 
is much the same in both. The under parts, from bill to vent, are purer white and more strongly 
marked against the greenish yellow not yellow green sides. The under wing and tail coverts 
are bright sulphur yellow, without any tinge of green. The quills are very different. 
As in V. olivaceus, virescens, philadelphicus, and Jlavifrons, this species has no spurious 
primary. 
The specimens are marked as having the iris yellow ; the bill lead color. 
List of specimens. 
Catal. 
No. 
3776 
3977 
Localit}^ 
Monterey, Mex. 
do. 
Whence obtained. 
Lieut. Couch. 
do 
Length. 
5.75 
6.00 
Stretch 
of wings 
9. 25 
Wing. 
3. 25 
3. 25 
Eyes yellow, bill and feet lead. 
Bill slate, feet lead 
VIREO VIRESCENS, Vieillot. 
Bartram's Vireo. 
? Vireo virescens, Vieill. Ois. Am. Sept. I, 1807, 84 ; pi. liii. 
?? Sylvia chivi, Vieill. " Encyelop. 437"— Nouv. Diet. XI, 1817, 174. 
? Phyllomanes chivi, Cabanis, Mus. Hein. 1850-'51, 63. 
Lanius agilis, Licht. Doubl. 1823, No. 526. 
Thmnnophilus agilis, Spix, Av. Bras. II, tab. xxxiv,f. 1. 
Phyllomanes agilis, Bcrm. Th. Bras. Vogel, II, 1856, 108. 
Vireo bartramii, Sw. F. B. Am. II, 1831, 235.— ?? Aud. Orn. Biog. V, 1839,296 ; pi. 434, f. 4.— Tb. Syn. 1839, 161.— 
Ib Birds Amer. IV, 1842, 153 ; pi. 242 — Nuttall, Man. Orn. I, (2d ed ) 1840, 358. 
Sp. Ch.— Second, third, and fourth quills about equal ; first intermediate between fifth and sixth decidedly shorter than the 
former. Smaller than V. olivaceus. Above bright olive green. Crown ash. A greenish white line from the bill over the eye 
to the side of the occiput, bordered by a dark brown line above. A dusky line from the bill through and behind the eye. Under 
parts whitish ; the sides strongly yellowish green ; the under tail coverts greenish yellow. Length, 5.25 ; wing, 2.75. 
Hah. — Central and eastern South America ; Atlantic United States? 
The specimen before me comes from Brazil, and may, possibly, not be the true V. bartramius, 
although resembling it very closely. The bill is gently curved from the base, not so straight in 
its uppei outline as in olivaceus. The second and third quills are longest ; the fourth scarcely 
shorter ; the first considerably shorter than the fifth. There is no spurious primary. 
This species is smaller than V. olivaceus, but very similar. The colors are much brighter 
green, however. The ash of the nape has a browner tinge. The light line over the eye is 
narrower, and more greenish white than white ; the dark line above it more distinctly marked. 
The white of the under parts is more restricted, and the strongly marked yellow olive of the 
sides is scarcely seen in V. olivaceus. The under coverts and inner edges of the tail feathers are 
much deeper greenish yellow. The sides of the neck and outer margins of the wings and tail 
are purer olive greenish. 
