136 FIELD KEY 
Fifth Group.—Without either yellow, orange, red, or blue in the 
plumage; not conspicuously black, or black and white 
I. Underparts all one color, without streaks or spots. 
1. Back without streaks or spots. 
A. Underparts white or whitish. 
a. Length under 7°50. 
a!, Back olive, olive-green, or slaty fuscous. 
a’, No white line over the eye; flycatchers, capturing their prey on 
the wing and returning to their perch, where they sit quietly 
until making a fresh sally. 
a3, Crown blackish; frequently found nesting under bridges or 
about buildings; tail wagged nervously; note, pewit-phebe. 
456. PuaBeE. 
a4, Wing-bars whitish; haunts orchards, lawns, and open wood- 
land; note, chebéc, chebéc. . . 467. Least FLYcATCHER. 
a’, Haunts woodlands; generally frequents the upper branches; 
note, a plaintive pee-a-wee...... 461. Woop PEWEE. 
62. A white line over the eye, or wing-bars white; gleaners; patiently 
exploring the foliage for food or flitting about the outer 
branches. 
6%. White line over the eye bordered by a narrow black one; 
cap gray; iris red; song, arambling recitative: ‘‘You see it 
—you know. it—do you hear me?”’ etc. 
624. Rep-EYED VIREO. 
64, White line over the eye not bordered by black; prefers the 
upper branches of rows of elms and other shade trees; song 
a rich, unbroken warble with an alto undertone. 
627. WARBLING VIREO. 
65, No white line over the eye; eye-ring and wing-bars white; 
length 4°00; a tiny, unsuspicious bird; flits about the outer 
branches of trees and shrubs; wings twitched nervously; 
note, cack; song, a sauna loud, musical whistle. 
749. RuBY-cROWNED KINGLET. 
61. Back not olive-green, or slaty fuscous. 
62. Back gray or bluish gray. 
6%. Crown black; cheeks white; a tree creeper; note, yank, yank, 
. WHITE-BREASTED NUTHATCH. 
b4, A gray, crested bird; forehead black; no white in the tail; 
note, a whistled peto, peto, or hoarse de-de-de-de. 
731. Torrep Tit. 
ce. Back cinnamon-brown; length 4°75; a nervous, restless, excit- 
able bird; tail carried erect; song, sweet, rapid and rippling, 
delivered with abandon. ........ 721, House WREN. 
6. Length over 7°50. 
1, Upperparts grayish slate-color; a white band at the end of the 
tail; a concealed orange-red crest; a bird of the air, catching its 
insect food on the wing, and occasionally sallying forth from 
its exposed perch in pursuit of a passing Crow; note, an un- 
musical, steely chatter............. 444. KinesBirp. 
6%, Length 12°00; slim, brownish birds with long tails; flight short 
and noiseless; perch in a tree, not in an exposed position; note 
tut-tut, cluck-cluck, and cow-cow. 
387. YELLOW-BILLED Cuckoo. 388. BLACK-BILLED CUCKOO. 
B. Underparts not white. 
a. Slate-color; cap and tail black; inhabits the lower growth; call-note, 
nasal; song highly musical and varied; length 8°50. 
704. CaTBIRD. 
b. Grayish brown; conspicuously crested; a black line through the 
eye; tail tipped with yellow; generally seen in small flocks; note 
thin and weak; length 7:00 ....... 619. Caspar Waxwina. 
