436 WOOD WARBLERS 



A FIELD KEY TO THE 



ADULT MALE WARBLERS OF EASTERN NORTH AMERICA IN 

 SPRING AND SUMMER PLUMAGE. 



I. Throat yellow, white, or whitish; underparts without streaks or patches. 

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



III. Throat yellow or orange, underparts with streaks. (In one species a 



blackish brown band across the breast.) 



IV. Throat white or whitish, with streaks or spots on the underparts. (In 



two species a yellow patch on the sides of the breast.) 



I. Throat yellow, white, or whitish; underparts without streaks 

 or patches. 



1, Throat yellow. 



A. Length over 6*00, the largest of the Warblers; haunts dense thick- 



ets in second growth; song, a peculiar mixture of whistles, chucks, 

 and crow-calls, delivered from the undergrowth, from the trees 

 above, or on the wing, when the bird resembles a bunch of falling 

 leaves 683. YELLOW-BREASTED CHAT. 



B. Length under 6'00. 



a. Head and neck bright golden yellow like the breast; tail-feathers 



white, except at the tip; haunts near the water; especially low 

 bushes and willows hanging over streams and ponds; call, a 

 sharp peek; range, from Virginia and s. Minnesota southward. 



637. PROTHONOTARY WARBLER. 



b. Forehead and cheeks black, a yellow line over the eye; song, a 



loud whistled call of five to seven notes; haunts near the ground; 

 range from lower Hudson valley southward. 



677. KENTUCKY WARBLER. 



c. Forehead and cheeks black, bordered by grayish; no line over 



the eye; haunts undergrowth; call, a frequently repeated chack; 

 song, a loud, rapid I beseech you, I beseech you, I beseech you, or 

 witch-e-wee-o, witch-e-wee-o, witch-e-wce-o; movements restless; 



abundant 681. MARYLAND YELLOW-THROAT. 



6816. FLORIDA YELLOW-THROAT. 



d. Head and back olive-green; wings with two white bars; outer 



tail-feathers with white; haunts pine woods; song, a musical trill. 



671. PINE WARBLER. 



e. Crown bluish ash, eye-ring white; call-note sometimes like the 



sound produced by striking two pebbles together. 



645. NASHVILLE WARBLER. 



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

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

 the first note higher, and also wee, chl-chl-chl-chl, chur, chee-chur. 



641. BLUE-WINGED WARBLER. 



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

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



2. Throat white or whitish. 



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



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



dered by black lines; not common. 



639. WORM-EATING WARBLER. 



b. Crown plain brown; range, Virginia and southward. 



638. SWAINSON'S WARBLER. 



B. 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 x 642. BREWSTER'S WARBLER. 



