288 



KEY TO THE BIRDS OF EASTERN NORTH AMERICA. 



V^^ 



Crown, olive green (sometimes with forehead 

 yellow) ; underparts, greenish yellow ; Ijack and 

 nnnp, olive green ; terminal third of inner webs 

 of outer tail feathers, white. 



Blue=winged Warbler. 



Hdminthophila pinns (female and immature^. 

 See No. 487. 



Tuderpaits, tinged with greenish yellow; undertail coverts, white; crown, back, 

 and rump, olive green ; outer tail feathers very narrowly edged with white 



('entirely absent in some specimens). 



Tennessee Warbler. 



Helminthophila perenrhia {female in fall mid immahire). 

 See No. 493. 



Tnderparts, yellow, washed with olive on sides; sides of head and lores, 

 yellow ; crown, olive green ; hack and rum]), olive green ; undertail coverts, 

 pale yellow. 



Hooded Warbler. 



Sylvania mitrata {female and immature in fall). 

 See No. 525. 



Kirtland's Warbler. 



TTnderparts, .yellow; sides, streaked with black; crown, slaty gray ; badv and 

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



Kirtland's Warbler. 



Dendroica kirtlandii. 

 See No. 510. 



