FAMILY MNIOTILTID^E. WARBLERS. 279 



Part 3. The following species have the throat, breast, and belly, yellow 

 without streaks ; some tail feathers marked with white : 



Crown and sides of head, grayish or slate color; no yellow on forehead; adult 

 birds have patch of chestnut on crown ; some tail feathers very narrowly 

 edged with white ; under wing coverts, yellow ; no black streaks on sides of 

 body. 



Nashville Warbler. 

 Helminthophila ruficapilla. 

 See No. 491. 



Wing bars, white; under wing coverts, white; some tail feathers with much 

 white on inner webs ; adult birds have forehead and more or less of crown yel- 

 low ; immature birds have crown yellowish green. 



Blue-winged Warbler. 



Helminthophila pinus. 

 See No. 487. 



No wing bars ; under wing coverts, yellow ; tail feathers, showing considerable 

 white; throat, more or less 'black, according to age and season; crown, slaty 

 gray ; adult birds have yellow forehead and gray crown, marked with black. 



Bachman's Warbler. 



Helminthophila bachmanii. 

 See No. 486. 



Wing bars, yellowish ; sides of body, more or less streaked with black. 



Prairie Warbler. 



Dendroica discolor. 

 See No. 514. 



Part 4. The following species have the throat, breast, and belly, yellow 

 without streaks ; no white on tail feathers : 



Crown and back, greenish yellow ; more or less yellow on inner webs of pri- 

 maries and tail feathers ; crown, yellowish green. 



Summer Warbler. 



Dendroica cestiva (female or immature) . 

 See No. 496. 



Crown, slate color with patch of chestnut in some plumages ; sides of head, slate 

 color ; wing, longer than tail ; lower belly, tinged with white ; rump and 

 upper tail coverts, bright yellowish green. 



Nashville Warbler. 



Helminthophila ruficapilla. 

 See No. 491. 



