31. 
ras bp 
33. 
33. 
35. 
Bid 
39. 
39. 
41. 
41. 
99 
30. Crown olive-yellow; sides of head, throat and chest white, sides 
chestnut. . Seas Teciraces .Chestnut-sided Warbler. 
30. Crown int: sibs of Head Seer sgaee chest, and sides 
ULES TMU Soe enskeph Roy Ars cosine whenever Siemiene Bay-breasted Warbler. 
30. Crown black, no chestnut, but wholly black and white.... 
5 Paice GR e Betas Gr nacre tone ee ERE Ge aaa ..Black-poll Warbler. 
Back streaked with black; a white eye-ring; bane yellow, sides 
streaked. . Me mee .Kirtland Warbler. 
Back not Sireaked aro isle MONENTE RUMOR em su Trey yy fot Vee Ue, (32) 
32. A distinct aie wing-band; crown unstreaked olive, below 
yellow... 32) 5% Mont: .Prairie Warbler. 
32. No wing-band; crown Ronesnaan in eau Birealeedl grayish in young 
_Palm Warbler. 
Above Seadnich’ Sellen: chelow Oriehe vellowe eed ae chestnut in 
MeL Le Meer ante a . Yellow Warbler. 
If bright yellow Bela aot eee Sd ane wale of head Sith blackish(34) 
34. Under parts distinctly spotted (35)—not spotted.......... (37) 
Crown rufous, bordered black; a white Sioa but no dusky streak 
‘behind the eye...... pee .Ovenbird. 
Crown plain olivaceous; no eye-ring, yan satin a Ghee, pirate toeuene the 
eye. PAIZO NS YU, E ; ie . (36) 
36. one over eye narrow, y a Marieke den eal -cOV pas y -elliowiakes 
under parts, including epee bean ily streaked with blackish on 
SVM OWLS MO ROUMML 65 yi Saye es lcle sem» hee Grinnell Water-thrush. 
36. Line over eye broad,white; under tail-coverts buffy; under parts, 
excluding throat, lightly streaked with brownish on a buffy 
ground... Sale he: .Louisiana Water-thrush. 
. Throat and chest Brett helio anes of heed mike black. DPE (aco) 
. Throat and chest bluish gray to blackish (male) or Giovnich He grayish 
@emale)o 2... Sh ee Salis ah ee i eee dates oe yi ale Be cree (240) 
38. A velliow Hide over eye; eevee erown black or grayish black 
ete .. Kentucky Warbler. 
38. iio sallow Riess over eye; sae foxahead ladle SNES Ny eh rena) 
Space behind black on forehead of male pale gray; yellow of under parts 
duller; female darker above Smaller, tail under 2 inches. 
ent . Northern Yellowthroa. 
Sate antl ele on poreacaelt oF male ies yellow of under parts 
much brighter, more orange; female ae above. Larger, tail over 
2 inches. . Basal Rye . Western Yellowthroat. 
40. Tail one even; rene. without ileal a decided white eye-ring 
ee RYAN et art as eh eh we att eave hil ages ee Connecticut Warbler. 
40. Tail rounded; breast with black; no decided eye-ring, at most 
evelids white........ : : mee: .(41) 
No white on eyelids; fail des 2 rahe ieee plats (eres leas so in 
male. . Arey: Bet .Mourning Warbler. 
A white Feit on Sehr ey dela gail over 2 sneliest Stews less black, lores 
EINOUGRS OPN Van ee PR RATA Ue nO EIS altynre Weal Macgillivray Warbler. 
