272 



KlOY TO THE BIKDS OF EASTERN NOKTH AMEKiCA. 



Group 2. Wing, 2.37 to 2.75 inches long. 



First primary, very short; lores and eye ring, whitish; tliiont, wliitish; 

 breast aud sides, faintly tinged witli yellow ; no wing bars. 



Warbling Vireo. 



Vireo gilvus. 

 See No. 473. 



First primary, short, but longer than in V. 

 gilvus ; lores and eye ring, yellow ; back, 

 olive; wing coverts, edged with white. 



White=eyed Vireo. 



Vireo noveburacensiSy and races. 

 See No. 478. 



First primary, not short ; lores and eye ring, dull white ; underparts, washed 

 with very pale greenish yellow ; no wing bars. 



Philadelphia Vireo. 



Vireo philadelphiais. 

 See No. 472. 



