228 FIELD MUSEUM OF NATURAL HISTORY ZOOLOGY, VOL. IX. 



Bell's Vireo. 



Crown, grayish, often tinged with olive; orbital ring and lores, 

 yellow. Vireo griseus. 



White-eyed Vireo. 



See No. 298. 



White-eyed Vireo. 



GROUP 2. Wing, from 2.37 to 2.75 inches long. 



First primary, very short; lores and eye ring, whitish; throat, 

 whitish; breast and sides, faintly tinged with yellow; no wing bars; 

 crown, nearly the same color as back. Vireosylva gilva. 



Warbling Vireo. 



See No. 295. 



First primary, short, but longer than 

 in V. gilva; lores and eye ring, yellow; 



back, olive; wing coverts, edged with 

 white, forming wing bars. 



Vireo griseus. 

 White-eyed Vireo. 

 See No. 298. 



