FAMILY MNIOTILTIDA.. — WARBLERS. 289 
Crown, greenish blue ; wing coverts, edged with white; back, greenish blue, 
without streaks; under tail coverts, whitish ; underparts, tinged with pale 
yellow. 
Cerulean Warbler. 
Dendroica cerulea ( female and immature). 
See No. 501. 
Part 4. The following species have the throat, breast, and belly, yellow, 
without streaks, and no white on the tail feathers : — 
Crown, slate color, with patch of chestnut (male), 
or crown, Olive gray (female); rump and upper 
tail coverts, yellowish green; auricular region 
(sides of head), grayish; under tail coverts, 
yellow. 
Nashville Warbler. 
Helminthophila rujicap la. 
See No. 491. 
Underparts, faintly washed with yellow, or yellowish white; crown, grayish 
olive; back and rump, olive green; under tail coverts, white; no yellow 
on tail feathers. 
Tennessee Warbler. 
Helminthophila peregrina (female in fall). 
See No. 493. 
Crown, back, and rump, yellowish green; major part of inner webs of tail 
feathers, yellow. 
Summer Warbler. 
Yellow Warbler. 
Dendroica cestiva (female). 
See No. 496. 
Sides of head, yellowish; crown, glossy black 
(male); crown, bright olive green, like back 
(female); back and rump, bright olive green; 
under tail coverts, yellow. 
Wilson’s Warbler. 
Sylvania pusilla. 
See No. 526. 
Crown, grayish; back and rump, dull olive green; entire underparts, yel- 
low, palest on throat; no yellow on tail feathers; chin, not whitish; no buff 
white stripe over eye. 
Mourning Warbler. 
Geothlypis philadelphia (young female). 
See No. 521. 
