FIELD COLOE KEY 



xxxv 



9'. Rump yellow. Small. 

 10. Crown with yellow patch ; under 

 parts black, yellow, and white ; white 

 wing bars and white on ends of tail 

 feathers. First Warbler seen in 

 spring and last in fall. 



p. 310. YELLOW-RUMPED WARBLER. 



10'. Crown bluish gray ; under parts yellow, heavily 

 streaked with black ; large blotches of white on 

 wings and middle of tail. 



p. 324. BLACK AND YELLOW WARBLER. 



8'. Rump not white or yellow. 

 11. Throat and sides of breast black; back 

 olive-green, sometimes spotted with 

 black ; cheeks bright yellow ; tail 

 showing white. 



p. 311. BLACK-THROATED GREEN WARBLER. 



11'. Throat yellow. 

 12. Breast with solid black 

 crescent ; upper parts 

 brown, streaked. White 

 outer tail feathers seen 

 in flight. 



p. 106. MEADOWLARK. 



12'. Breast without solid black crescent. 

 13. Throat with black spots or blotches forming 

 necklace ; sides not streaked; back, 

 wings, and tail grayish, without 

 white patches. Song, rup-it-che, 

 rup-it-che, rup-it-chitt-it-lit. 



p. 322. CANADIAN WARBLER. 



