SYLVANIA, 527 
6.75-7.50, wing (male) 2.90-3.20 (3.03), tail 2.90-3.35 (3.08). Hogs 89 x .67. 
Hab. Eastern United States, north to Ontario and southern N ew England, 
west to edge of Great Plains; south, in winter, through eastern Mexico to 
Guatemala (Costa Rica ?)...... 683. I. virens (Liny.). Yellow-breasted Chat. 
a’, Above olive-gray (sometimes nearly pure gray); white malar stripe longer; 
wings and tail longer; length 7.00-8.00, wing (male) 3.05-3.35 (3.13), tail 
3.30-3.60 (3.43). Hggs 89 x .69. Hab. Western United States, east to 
Great Plains, south into Mexico. 
683a. I. virens longicauda (Lawez.). Long-tailed Chat. 
Genus SYLVANIA Norvaut. (Page 483, pl. CXVIL, fig. 8.) 
Species, 
a’. Wing with two whitish bands. 
Adult male: Above olive-green, the wing with two dull white bands, the 
outer tail-feathers with a white spot near end of inner web; a narrow 
white orbital ring; lower parts pale yellow, fading into white pos- 
teriorly; length 5.00. Hab. Kentucky. (One of the so-called “lost 
species” of AuDUBON.) 
—. S. microcephala Ripew. Small-headed Warbler! 
a’. Wing without any markings. 
6. Upper parts olive-green. 
c'. Inner webs of outer tail-feathers with white patches. 
Adult male: Forehead and ear-coverts gamboge-yellow ; rest of 
head and neck, including chest, uniform deep black; rest of 
lower parts pure gamboge-yellow. Adult female: Similar to 
male, but with black of head usually much less distinct, some- 
times wholly absent, that of upper portions being replaced by 
olive-green, that of throat, etc., by gamboge-yellow. Young in 
Jirst autumn: Similar to adult female, without black on head. 
Length 5.00-5.70, wing 2.50-2.75, tail 2.20-2.40. West in low 
bushes in undergrowth of high, damp woods. Eygs 3-4, .70 x 
53, white, or buffy white, speckled or spotted round larger end 
with reddish brown and lilac-gray, usually mixed with a few 
black specks or pen-lines. Hab. Eastern United States, north 
to southern parts of Michigan, New York, and New England, 
west to edge of Great Plains; south, in winter, to Cuba, Ja- 
maica, and through eastern Mexico and Central America to 
Panama......s.esee 684. S. mitrata (GmEL.). Hooded Warbler. 
ce’. Inner webs of tail-feathers without any white. (Adult males plain 
olive-green above, the crown glossy blue-black; lower parts, and 
sides of head, gamboge-yellow. Adult females similar to adult male, 
but black crown-patch usually less distinct, often merely indicated, 
1 For references, see p. 357, A. O. U. Check List, 
