JAN., 1909. BIRDS OF ILLINOIS AND WISCONSIN CORY. 255 



Under parts, yellow; sides, streaked with black; crown, slaty gray; 

 back and rump, ashy, streaked with black; lores, black. 



Dendroica kirtlandii. 

 Kirtland's Warbler. 



See No. 322. 



Under parts, yellow, washed with olive on the sides ; sides of head 

 and lores, yellow; crown, olive green; back and rump, olive green; 

 under tail coverts, pale yellow. Wilsonia citrina. 



Hooded Warbler. 



See No. 334. 



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

 yellow, without streaks ; no white on the tail feathers : - 



Crown and sides of head, with more or 

 less black ; a yellow stripe over the eye ; 



back and rump, olive green. 



Oporornis formosa. 

 Kentucky Warbler. 

 See No. 329. 



PART 5. The following species have the throat, yellow; belly, not 

 yellow ; tail feathers, marked with more or less white : 



Back, green, streaked with black; outer web of outer tail feather, 

 not edged with white; no yellow stripe over eye ; chin, whitish; sides 

 of breast and body, streaked. Dendroica striata (immature). 



Black-poll Warbler. 

 See No. 318. 



Crown, black, with patch of orange yellow in center; back and 

 rump, black, with more or less white; throat, orange; sides streaked 

 with black. Dendroica blackburnice (adult male ) . 



Blackburnian Warbler. 

 See No. 319. 



Throat, yellow; sides of breast, streaked with blackish; crown, 

 olive, dotted with dull black, and usually showing a trace of yellow in 

 center ; back and rump, olive gray, streaked with black ; basal portion 

 of narrow outer web of outer tail feather, edged with white. 



Dendroica blackburnice (female and immature ) . 

 Blackburnian Warbler. 

 See No. 319. 



