1(54 



jRictus with evident bristles. 



ITarsus not shorter than middle toe and claw ; entirely black and white, 

 streaked. ......... Mniolilla, I 



JjTarsus not shorter than middle toe and claw. 



a. Hind toe decidedly longer than its claw ; bill acute, scarcely notched 



bluish, throat and middle of back with yellow. . Parula, 2 



Bill very acute, notched, perceptibly decurved, so that the gonys \i 



slightly concave, rump and under parts chiefly yellow. Perissoglossa, 6 



aaa. Warblers without above characters. . . . Dd7tdnvca, 7 



tfRictus without evident bristles. 



b. Whole head and neck bright yellow, bill notched, half inch or more long 



Proionotaria, 3 



bd. Whole head and neck not yellow ; bill acute, not notched nor bristled 



less than half an inch long. .... Helminthophaga, 5 



**Tail feathers yellow on inner webs ; outer webs dusky ; plumage chiefly yel 

 low. ........... Dendfceca, 7 



***Tail feathers all unmarked ; same color on both webs. 



c. Conspicuously streaked below ; head plain or with two black stripes ; legs 

 long. ... ..... . . Seiurus, 8. 



cc. Not streaked below. 



d. Wings about as long as tail ; chiefly yellow below ; crown of male black or 

 ashy ; legs strong. ... • J- • Geoihlypis, 10. 



dd. Wings decidedly longer than tail. 



e. Bill not notched, half inch or more long ; head plain or with four 

 black stripes. ... . . . Helminthophaga, 4. 



ee. Bill less than half an inch long. 

 f. Bill notched; wings more than 2j4; crown plain or with black. 



Oporornis, 9. 



ff. Bill not notched or bristled, very acute; wings less than 2^; crown 



plain or with a bright yellow spot. . . Helminthophaga,^. 



ICTERIN-E. Chats. Bill rather stout, not notched, hooked nor bristled; tail 



longer than wings; length, 7 to 8. . . . . . . Icteria, 11. 



SETOPHAGIN.-E. Fly-Catching IVarblers. Bill depressed, broader at base than 

 high, notched and somewhat hooked, with strong rictal bristles half the length of 

 bills ; wings longer than tail ; length 5 ^ or less. 



a. Bill fully twice as long as wide at base ; tail feathers unmarked or blotched 

 with white. ......... Myiodioctes, 12. 



aa. Bill scarcely twice as long as wide at base ; tail marked with orange or yel- 

 low. . . . ....... Setophaga, 13. 



I. MNIOTILTA. Vieillot. Creeping Warblers. 



27. M. VARIA, (L.) Vieill. Black and White Creeper. Entirely black and 

 white, streaked ; crown with a broad white stripe ; white wing bars; female grayer; 

 L. 5; W. 2^^; T. z^:^. Summer resident south; not uncommon north. A neat 

 bird, with some of the habits of the nuthatch. 



2. PAPULA. Bonaparte. Bhie Yellow-backed Warblers. 



28. P. AMERICANA, (L.) Bon. Clear ashy blue ; back with large golden- 

 green patch. ; yellow below ; belly white ; white wing bars ; female obscurely 

 marked; L. 42^. North an abundant migrant, breeding rarely. 



