82 FIELD KEY TO COMMON BIRDS. 



b. Crown not rufous or chestnut. 



b 1 . Length 6-75 inches; crown blackish, with a central whitish stripe; 

 throat white; breast gray; a yellow spot before the eye; haunts 

 in and about thickets ami bushy woodlands; song, a high, clear, 

 musical whistle; call-note, chink. 



White-throated Sparrow, page 143. 

 b*. Length 5-20 inches; bill slender; a white line over the eye; 

 tail carried erect; haunts reedy marshes; call-note scolding; 

 song rippling ; May to Oct. 



Long-billed Marsh Wren, page 177. 

 2. Under parts white or whitish, streaked or jotted. 



A. Back streaked. 



a. Length 6*10 inches : outer tail-feathers white, showing conspicuously 

 when the bird flies; haunts dry fields and roadsides; song musical; 

 Apl. to Nov Vesper Sparrow, page 141. 



b. Outer tail-feathers not white. 



b l . Length 6-30 inches ; breast with numerous spots tending to form 

 one large spot in its center: haunts on or near the ground, generally 

 in the vicinity of bushes; call-note, chimp; song musical; a per- 

 manent resident Song Sparrow, page 138. 



b*. Length 6-35 inches; breast grayish with one spot in its center; 

 Oct. to Apl Tree Sparrow, page 146. 



B. Back not streaked ; breast spotted. 



a. Length 11-40 inches; tail 5-00 inches; wing-bars white: upper parts, 

 wings, and tail bright cinnamon-brown ; haunts undergrowth ; sings 

 from an exposed and generally elevated position; song loud, striking, 

 and continuous ; Apl. 25 to Oct. . . Brown Thrasher, page 175. 



b. Length under 9-00 inches; tail under 300 inches; no wing-bars; 

 back reddish or cinnamon-brown. 



b 1 . Length 8-25 inches; breast and sides heavily marked with large, 

 round, black spots; head and upper back brighter than lower back 

 and tail ; call-note, a sharp pit or liquid quirt ; May to Oct. 



Wood Thrush, page 184. 



b*. Length 7'15 inches: breast witli wedge-shaped black spots; sides 

 unspotted, washed with brownish ashy : tail reddish brown, brighter 

 than back; call-note, a low chuck; Apl. 10 to May 10; Oct. and 

 N ov Hermit Thrush, page 185. 



b*. Length 750 inches : upper breast lightly spotted with small, wedge- 

 shaped, brownish spots ; tail the same color as the back ; sides white ; 

 call-note, a clearly whistled wheeu ; May to Sept. 



Wilson's Thrush, page 183. 



c. Length under 9'00 inches ; tail under 3-00 inches ; no wing-bars ; back 

 olive-green. 



cK Length 6-10 inches; center of crown pale brownish bordered by 

 black; haunts on or near the ground in woodland; a walker; 

 song, a ringing crescendo, teacher, teacher, teacher, TEACHER, 

 TEACHER; May to Sept Oven-bird, page 170. 



