FAMILY MNIOTILTIDA. — WARBLERS. 279 
Part 3. The following species have the throat, breast, and belly, yellow 
without streaks; some tail feathers marked with white : — 
Crown and sides of head, grayish or slate color; no yellow on forehead; adult 
birds have patch of chestnut on crown; some tail feathers very narrowly 
edged with white; under wing coverts, yellow; no black streaks on sides of 
body. 
Nashville Warbler. 
Helminthophila ruficapilla. 
See No. 491. 
Wing bars, white; under wing coverts, white; some tail feathers with much 
white on inner webs; adult birds have forehead and more or less of crown yel- 
low; immature birds have crown yellowish green. 
Blue-winged Warbler. 
Helminthophila pinus. 
See No. 487. 
No wing bars; under wing coverts, yellow; tail feathers, showing considerable 
white; throat, more or less black, according to age and season; crown, slaty 
gray; adult birds have yellow forehead and gray crown, marked with black. 
Bachman’s Warbler. 
Helminthophila bachmanit, 
See No. 486. 
Wing bars, yellowish; sides of body, more or less streaked with black. 
Prairie Warbler. 
Dendroica discolor. 
See No. 514. 
Part 4. The following species have the throat, breast, and belly, yellow 
without streaks; no white on tail feathers : — 
Crown and back, greenish yellow; more or less yellow on inner webs of pri- 
maries and tail feathers; crown, yellowish green. 
Summer Warbler. 
Dendroica westiva (female or immature), 
See No. 496. 
Crown, slate color with patch of chestnut in some plumages; sides of head, slate 
color; wing, longer than tail; lower belly, tinged with white; rump and 
upper tail coverts, bright yellowish green. 
Nashville Warbler. 
Helminthophila ruficapilla. 
See No. 491. 
