SYLVICOLlixZE. -XXVII. 59 



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



c. Conspicuously streaked below; head plain or with two 

 black stripes; legs long. . . . SEIUIIUS, 8. 



cc. Not streaked below. 



d. Wings about as long as tail ; chiefly yellow below ; 

 crown (of $} black or ashy; legs strong. 



GEOTHLYPIS, 10. 



dd. Wings decidedly longer than tail. 



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

 or with four black stripes. . HELMITHEKUS, 4. 



ee. Bill less than half an inch long. 



/. Bill notched ; wings more than 21 ; crown plain or 

 with black OPOKORNIS, 9. 



ff. Bill not notched, nor bristled, very acute ; wings less 

 than 2i ; crown plain or with a bright spot. 



HELMINTHOPIIAGA, 5. 



II. Bill rather stout, not notched, hooked nor bristled ; tail longer 



than wings ; length 7 to 8. Chats. (ICTERIN^E.) 



ICTERIA, 11. 



III. Bill depressed, broader at base than high, notched and some 

 what hooked, with strong rictal bristles half the length of 

 bill ; wings longer than tail ; length 5i or less. Fly-catching 

 Warblers. 



a. Bill fully twice as long as wide at base ; tail feathers un 

 marked, or blotched with white. . MYIODIOCTES, 12. 



aa. Bill scarcely twice as long as wide at base ; tail marked 

 with orange or yellow. . . . SETOPHAGA, 13. 



/. MN10TILTA, Vieillot. CREEPING WARBLERS. 



1. M. varta, (L.) Vieill. BLACK AND WHITE CREEPER. 

 Entirely black and white, streaked; crown with a broad 

 white stripe; white wing bars; $ grayer; L. 5; W. 2f; 

 T. 2J. E. U. S.; a neat bird, with some of the habits of 

 a Nuthatch. 



