298 



KEY TO THE BIKDS OF EASTEKN NORTH AMERICA. 



Throat and sides, chestnut-, crown, chestnut. 



Bay=breasted Warbler. 



Dendroira castaneu {achiU} . 

 See No. 503. 



Throat and sides, more or less marked with chestnut; crown, olive p;reen, 

 streaked with black; back, grajnsh olive, streaked with black; (crown, with 

 indications of chestnut ;) belly, cream white. 



Bay=breasted Warbler. 



Dendroica castanea {female). 

 See No. 503. 



Throat and underparts, cream white, shading into pale buflf; white on flanks; 

 crown and back, green, indistinctly streaked with black; wing bars, white. 



Bay^breasted Warbler. 



Dendroica castanea {immature) . 

 See No. 503. 



Throat and underparts, pale yellowish white ; crown and back, green, indis- 

 tinctly streaked; wing bars, white v often very difficult to distinguish from 

 immature specimen of D. castanea. 



Black-poll Warbler. 



Dendroica striata (immature). 

 See No. 504. 



Throat and underparts, white ; ashy on the 

 sides; crown, slaty gray; l)ack, green; 

 under tail coverts, white. 



Tennessee Warbler. 



Helminthophila 2)ere{irina (adult male) . 

 See No. 493. 



Throat and underparts, white; wing bars, yellow; crown and back, bright 

 green. 



Chestnut°sided Warbler. 



Dendroica pennsylvanica (ir.imature) . 

 See No. 502. 



