436 WOOD WARBLERS 
A Fietp Key To THE 
AputtT Mate WaARBLERS 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 acne, wees ee bird resembles a bunch of falling 
leaves eer . 683. YELLOW-BREASTED CHAT, 
B. Tanck 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, san iakihias witch-e-wee-o; movements restless; 
abundant . .. . . 681. MaryLanp YELLOW-THROAT. 
681b. FLoripaA 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 penbls together. 
NasHvILLE WARBLER. 
f. Forehead yellow, a small black ae in ey of the eye; wings 
with two white bars; outer tail-feathers with white; song, swéé-chee, 
the first note higher, and also wéé, cht-chi-chit-cht, chiir, chéé-chitr. 
41, BLUE-WINGED WARBLER. 
g. Forehead yellow; crown-cap black; cheeks yellow; wings and 
tail unmarked; rather rare . . . 685. WiILsoN’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, Breast white, with a barely perceptible tinge of yellow; wings 
bars white or yellow, a black mark in front of the eye; rare. 
641x642. BrewsTer’s WARBLER. 
