FIELD KEY 137 
c. Underparts cream-buff; a conspicuous whitish line over the eye; 
upperparts rufous-brown; movements active; tail carried erect; 
haunts lower growth; notes loud and striking; length 5°50. 
718. CaRoLINA WREN. 
2. Back streaked. 
Crown rufous or chestnut without streaks. 
a. Length 5°25; bill black; a whitish line over the eye; a familiar 
bird of lawns and dooryards; song, a monotonous chippy- 
chippy-chippy. .. 1... ee ee eee 560. Cuiprinac SPARROW. 
b. Length 5°50; Peal reddish brown, back rufous, or rufous-brown; 
wing-bars and eye-ring whitish; haunts dry, bushy fields and 
pastures; song, a musical, plaintive cher-wee, cher-wee, cher-wee, 
cheeo, dee-dee-dee-dee. . ... 1.2.22 563. Fretp Sparrow. 
c. Length 5°50; forehead black; crown and wings chestnut-rufous; 
flanks pale grayish brown; haunts marshes; song, a rapidly 
repeated weet-weet-weet, etc........ 584. Swamp SPARROW. 
B. Crown not rufous or chestnut. 
a. Length 6°75; crown, blackish with a central whitish stripe; throat 
white; breast gray; a yellow spot before the eye; haunts in and 
about’ thickets and bushy woodlands; song, a a high, clear, musical 
whistle; call-note, chink ... 558. WHITE-THROATED SPARROW. 
b. Length 5°50; crown finely streaked; a tree climber, winding 
patiently up tree trunks in search of food; tail-feathers pointed. 
726. BROWN CREEPER. 
c. Length 5°50; bill slender; a white line over the eye; tail carried 
erect; haunts reedy marshes; call-note scolding; song, rippling. 
25. LoNne-BILLED MarsH WREN. 
II. Underparts not all one color. 
1. Underparts white or whitish, streaked or spotted. 
. Back streaked. 
‘a. Crown streaked; underparts conspicuously streaked. 
a. Outer tail-feathers white, showing conspicuously when the 
bird flies; length 6°00; haunts dry fields and roadsides; song 
loud and musical .... 0... + 540. VresPER SPARROW. 
bl. Outer tail-feathers not white. ‘ 
62, Length 6°00; plumage with a rufous-brown cast; spots on the 
breast tending to form one large spot in its center; haunts on or 
near the ground, generally in the vicinity of bushes; call-note, 
a characteristic chimp; song musical... .581. Sona Sparrow. 
b%. Length 6°00; no rufous in the plumage; streaks on the underparts 
evenly distributed: frequently seen feeding on buds or blos- 
soms; call-note, a sharp chink, often uttered during flight; 
song, a sweet, flowing warble. . 517. Purpie Fincu (Im.). 
b. Crown not streaked, rufous-brown; underparts whitish with an 
eli blackish spot in the conte of the breast; Oct. to 
PADD sid) Speier 5. to Wa Eee Ho Bd, A) Tce Gh . 559. TREE Sparrow. 
B. Back not streaked. 
a. Upperparts rufous, olive-brown, or cinnamon-brown. 
a. Bill slender and thrushlike; breast spotted with blackish. 
at. Length 11°00; tail 5°00; wing-bars white; upperparts, wings, 
and tail uniform rufous; haunts undergrowth; sings from an 
exposed and generally elevated position; song loud, striking 
and continuous. . ...6+..4.-+ 705. Brown THRASHER. 
62. "Length under 9°00; tail under 3°00; no wing-bars. 
b3. Breast and sides heavily marked with large, rownd, black 
spts;head and upper back brighter than lower back and tail; 
call-note, a sharp pit or liquid quirt . 755. Woop Turusa. 
64. Breast with wedge-shaped black spots; sides unspotted, 
washed with brownish ashy; tail rufous, brighter than back; 
call-note,alow chuck ...,.. 759), Hermir Turusa. 
