Jan., 1909. Birds of Illinois and Wisconsin — Cory. 235 



PART 2. The following species have the throat, breast and belly, 

 yellow; breast, with more or less streaks; no white on tail feathers — 



More or less yellow, on inner webs of primaries and tail feathers. 



Dendroica cBstiva. 

 Yellow Warbler. 



See No. 311. 



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 fore- 

 head; 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. Vermivora rubricapilla. 



Nashville Warbler. 

 See No. 306. 



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 yellow; immature birds have crown yellowish green. 



Vermivora pinus. 

 Blue-winged Warbler. 

 See No. 304. 



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

 black. Dendroica discolor. 



Prairie Warbler. 

 See No. 325. 



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 primaries and tail feathers; crown, yellowish green. 



Dendroica (estiva (female or immature ) . 

 Yellow Warbler. 

 See No. 311. 



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. 



Vermivora rubricapilla. 

 Nashville Warbler. 

 See No. 306. 



