FAMILY MNIOTILTIDJE. WAKBLERS. 309 



Throat and sides, more or less chestnut ; crown, olive, streaked with 

 black (usually with trace of chestnut) ; back, grayish olive, streaked with 

 black. 



Bay -breasted Warbler. 



Dendroica castanea (female) . 

 See No. 503. 



Throat and underparts, cream white, shading to pale butt' white on flanks; 

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

 (Often difficult to distinguish from female of Black-poll Warbler, D. striata, 

 which resembles it very closely in immature plumage, but has the underpirts, 

 usually yellowish.) 



Bay -breasted Warbler. 

 Dendroica castanea (immature) 

 See No. 503. 



Throat and underparts, dull white ; crowii and back, grayish olive ; wing 

 bars, white ; an oblique white spot on inner webs of two outer tail feathers, 

 rest of tail feathers, without white; under tail coverts, whitish. 



Pine Warbler. 



Dendroica vigorsii (///, and immature} 

 See No. 611. 



Throat and underparts, whitish, faintly tinged with yellow ; breast, with rather 

 indistinctly dusky streaks; crown, grayish olive, usually with an indication of 

 chestnut ; back, grayish olive ; rump, olive green ; under tail coverts, 

 yellow. 



Palm Warbler. 

 Red-poll Warbler. 

 Dendroica pahnarum. 

 See No. 512. 



