WOOD WARBLERS. 337 



d. Throat pale yellow, indistinctly spotted or streaked ; belly 

 whitish ; cheeks bright yellow ; outer web of outer tail-feather 

 white at the base. 



667. BLACK-THROATED GREEN WARBLER (Ini.). 



e. Throat and breast yellow, distinctly spotted ; median wing-coverts 

 white 650. CAPE MAY WARBLER ( 9 and im.). 



B. Back streaked or spotted with black, or center of crown orange. 



a. Under parts pale yellow; black spots confined to sides; no white 

 wing-bars 670. KIRTLAND'S WARBLER. 



5. Under parts pale yellow, indistinctly streaked with blackish ; 

 two white or whitish wing-bars. 



661. BLACK-POLL WARBLER (Im.). 



c. Throat orange or yellow, without streaks; ear-coverts gray or 

 black ; center of crown yellowish or orange. 



662. BLACKBURNIAN WARBLER. 



d. Under parts streaked with black ; ear-coverts rufous ; cap black. 



650. CAPE MAY WARBLER. 



e. Head bluish gray or ashy ; rump bright yellow ; eye-ring white ; 

 white tail-spots not reaching to ends of feathers. 



657. MAGNOLIA WARBLER. 



C. Back ashy gray. 



a. Throat yellow ; belly white ; wing-bars and tail-spots white. 

 a 1 . A yellow line from the bill to the eye. 



663. YELLOW-THROATED WARBLER. 

 a 2 . A white line from the bill to and over the eye. 



663a. SYCAMORE WARBLER. 



b. Entire under parts yellow ; breast with a necklace of black spots ; 

 no wing-bars or tail-spots 686. CANADIAN WARBLER. 



D. Center of back brick-red ; under parts yellow ; sides streaked with 

 black 673. PRAIRIE WARBLER. 



3. Throat yellow ; breast with a baiid of copper or blackish chestnut ; 

 upper parts blue ; center of back greenish yellow. 



648. PARULA WARBLER. 



4. Throat and forehead yellow ; breast and crown-cap black. 



640. BACHMAN'S WARBLER. 



Second Group. 



I. Throat and upper breast one color, black, gray, ashy, 

 or brown, very different from the white or yellow 

 belly. 



A. Belly white or whitish. 



a. Back gray or greenish gray, crown yellow, cheeks black or gray, 

 wing-bars yellow 642. GOLDEN-WINGED WARBLER. 



b. Back and crown bright olive-green, cheeks yellow, wing-bars 

 white 667. BLACK-THROATED GREEN WARBLER. 



c. Back and crown dark blue, a white spot at the base of the primaries. 



654. BLACK-THROATED BLUE WARBLER $ . 



