FAMILY MNIOTILTID^E. WARBLERS. 281 



Part 6. The following species have the throat yellow ; belly, not yel- 

 low ; no white on tail feathers : 



Throat, bright yellow; shading to whitish or 

 olive on belly; forehead and sides of head, 

 black (male) ; no black on head (female) ; 

 wing, not longer than tail. 



Maryland Yellowthroat. 

 Geothlypis trichas. 

 See No. 522. 



Throat, showing faint tinge of greenish yellow ; throat and sides of body, nearly 

 same color ; wing, considerably longer than tail. 



Tennessee Warbler. 



Helminthophila peregrinn. 

 See No. 493. 



Part 7. The following species have the throat, not yellow ; belly, 

 yellow ; and no white on the tail feathers : 



Legs, dark ; throat, whitish ; belly, faintly tinged with yellow ; under tail cov- 

 erts, whitish ; tail feathers, slaty brown. 



Bachman's Warbler. 



Helminthophila bachmanii (immature in fall} . 

 See No. 486. 



Head, grayish ; back, olive green ; belly, bright yellow ; throat, blackish (male) ; 

 throat, grayish (female) ; legs, pale ; tail feathers, olive green ; under tail 

 coverts, yellow. 



Mourning Warbler. 



G-eothlypis Philadelphia. 

 See No. 521. 



Back, grayish brown; belly, faintly tinged with yellow; under tail coverts, 

 yellow. 



Palm Warbler. 



Dendroica palmarum. 



Part 8. The following species have the throat, not yellow ; belly, 

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



Throat, usually with more or less black (sometimes without trace of black), ac- 

 cording to age and season ; forehead, yellow ; top of head, grayish, showing 



more or less black ; back, green. 



Bachman's Warbler. 



Helminthophila bachmanii. 

 See No. 486. 



