242 Field Museum of Natural History — -Zoology, Vol. IX. 



Crown, olive green (sometimes with 

 forehead yellow) ; under parts, greenish 

 yellow; back and rump, olive green; 

 terminal third of inner webs of outer tail 

 feathers, white. 



Vermivora piniis {female and immature). 

 Blue-winged Warbler. 

 See No. 304. 



Under parts, tinged with greenish yellow; under tail coverts, 

 white; crown, back, and rump, olive green; outer tail feathers very 

 narrowly edged with white (entirely absent in some specimens ) . 



Vermivora peregrinaj (Jemale in fall and invmatwre ) . 



Tennessee Warbler. 

 See No. 308. 



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

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

 tail coverts, pale yellow. 



Wilsonia citrina {female in fall and im.mature ) . 



Hooded Warbler. 

 See No. 334. 



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. 



Crown, greenish blue; wing coverts, edged with white; back, 

 greenish blue, without streaks; under tail coverts, whitish; under 

 parts, tinged with pale yellow. 



Dendroica cerulea {female and im,m.ature ) . 



Cerulean Warbler. 



See No. 315. 



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

 yellow, without streaks, and no white on the tail feathers: — 



Crown, slate color, with patch of chestnut (male), or crown, olive 

 gray (female); rump and upper tail coverts, yellowish green; auricu- 

 lar region (sides of head), grayish; under tail coverts, yellow. 



V ermivora rubricapilla. 

 Nashville Warbler. 

 See No. 306. 



