WOOD WARBLERS. 



/. Forehead yellow, a small black mark in front of the eye ; wings 

 with two white bans ; outer tail-feathers white ; song, swee-chee, 

 the first note higher, and also wee, chi-chi-cki-cki, chur, cJiM-chur. 



641. BLUE-WINGED WARBLER. 



g. Forehead yellow ; crown-cap black ; cheeks yellow ; wings and 

 tail unmarked ; rather rare .... 685. WILSON'S WARBLEK. 

 2. Throat white or whitish. 



A. Length 5'00 ; crown brown or with blackish and bufty stripes, 

 a. A conspicuous whitish line through the center of the crown, bor- 

 dered by black lines : not common. 



639. WORM-EATING WARBLER. 

 6. Crown plain brown; range, North Carolina and southward. 



638. SWAINSON'S WARBLEB. 

 , Length 4'50 ; crown ashy or forehead yellow. 



a. Forehead yellow. 



a 1 . Breast white, with a barely perceptible tinge of yellow ; wing- 

 bars white or yellow, a black mark in front of the eye ; rare. 



641 + 642. BREWSTER'S WARBLEB. 



b. Forehead not yellow. 



b l . Breast white, crown plain bluish ashy, clearly defined from 

 the bright olive-green back . . . 647. TENNESSEE WARBLER. 

 b 3 . Breast whitish, tinged with yellow and indistinctly streaked 

 with dusky ; crown dull ashy, not clearly defined from the back 

 and with a partly concealed patch of rufous-brown ; very rare 

 in the Atlantic States north of South Carolina. 



646. ORANGE-CROWNED WARBLEB. 

 II. Throat black, brown, or slate-color. 

 1. Belly white. 



a. Back blue, a white spot near the outer edge of the wing ; common. 

 654. BLACK-THROATED BLUE WARBLER. 



6. Back green, cheeks yellow ; song, a buzzlike zee repeated five or 

 six times, the next to last note the highest ; common. 



667. BLACK-THROATED GREEN WARBLER. 



c. Back grayish, forehead yellow, a black mark through the eye and 

 a white line below it ; a large patch of yellow on the wings ; song, 

 eee-zee~zee~zee, all on the same note ; not common. 



642. GOLDEN-:WINGED WARBLER. 



d Back black ; sides of the breast, middle of the wing, and base of 

 the tail-feathers reddish orange ; movements active, tail frequently 

 spread, the reddish color showing conspicuously ; abundant. 



687. REDSTART. 



. Back streaked with black and white ; song fine and wiry ; move- 

 ments like those of a Creeper; common. 



G36. BLACK AND WHITE WARBLER. 



f. Back streaked with bufl'y and black ; forehead and cheeks black ; 

 crown-cap, throat, upper part of the breast, and sides chestnut: 

 rather rare 660. BAY-BREASTED WARBLER. 



