8 
NORTH AMERICAN BIRDS. 
A. Breast reddish , or chestnut. 
1. S. sialis. No chestnut on the back ; throat reddish ; abdomen and 
crissnm white. 
Blue of a rich dark purplish shade. Tail about 2.75. Hal. East- 
ern Province United States, Cuba, and Bermudas . . var. sialis. 
Blue of a greenish shade. Tail about 3.20. Hal. East Mexico 
and Guatemala „ var. a z u r e a . 
2. S. mexicana. Chestnut, in greater or less amount, on the back j 
throat blue; abdomen and crissum blue. Hal. West and South Mid- 
dle Province United States, south to Jalapa, Cordova, and Colima. 
Bi Breast blue (light drab in 9 ). 
3. S. arctica. Entirely rich greenish-blue; abdomen white. Hab . 
Middle Province United States ; Port Franklin, British America. 
Family SYLVIXDiE. 
Most of the species (at least the American) have the eggs whitish, spotted with rusty, 
etc. The eyes are brown. 
Subfamilies. 
A. Wings longer than the nearly even and emarginate tail. Scutellas of tarsus 
scarcely or not at all appreciable. General color olivaceous above. No white on 
tail. 
Nostrils naked. Scutellse distinct on inner face of tarsus only. Head plain. 
(Page 8.) Sylviince. 
Nostrils overhung by bristly feathers. Scutellae of tarsus not appreciable. 
Head with a colored central crest. (Page 8.) Begulince. 
B. Wings about equal to the graduated tail. Tarsal scutellse distinct. Above 
bluish ; tail with white spots or patches. 
Nostrils uncovered. Head plain; either bluish or black above. (Page 9.) 
Polioptilince. 
Subfamily SYLYIINiE. (Page 8.) 
The characters given above of the subfamily answer for the single American genus. 
Genus PHYLLOPNEUSTE, Meyer & Wolf. 
} 
P. borealis. Olive-green above; beneath greenish- white ; more yellow behind; ax- 
illars yellow. A line over eye, and band across wing, greenish-yellow. Bill dark brown ; 
legs olive. Length, 4.75 ; wing, 2.50 ; tail, 2.00. Nest on ground, and domed. Eggs 
white, spotted with pink. Hab. China, Eastern Siberia, and east side of Behring Straits. 
(Alaska Willow - Warbler.) 
Subfamily HEGULIN 2 E (Page 8.) 
The characters given above of the subfamily answer for the single American genus. 
■;( ■ |P 
Genus RUGULTJS, Guv. 
■ Length about 4 inches ; wing, 2.25. Nest of American species undescribed, probably 
pensile, with white eggs, spotted obsoletely with buff. 
