82 FIELD KEY TO COMMON BIRDS. 



b. Crown not rufous or chestnut. 



Ji. 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 and bushy woodlands ; song, a higli, clear, 

 musical whistle; call-note, cltinlc. 



White-throated Sparkow, page 188. 

 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. 



LoNQ-BiLLED Marsh Wren, page 244. 

 2. Under parts white or whitish, strealced or sjiotteJ. 



A. Back streaked. 



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

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

 Apl. to Nov Vespek Sparrow, page 184. 



b. Outer tail-feathers not white. 



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

 one large spot in its center; haunts on or near tlie ground, generally 

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

 manent resident Song Sparrow, page 178. 



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

 Oct. to Apl. . . ' Tree Sparrow, page 194. 



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 240. 



b. Length under 9-00 inches; tail under 3-00 inches; no wing-bars; 

 back reddish or cin/ia?noii-brown. 



5'. 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 j^H or liquid quirt ; May to Oct. 



Wood Thrush, page 256. 



b^. Length 7'15 Indies; breast with wedge-shaped black spots; sides 

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

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

 Nov Hermit Thrush, page 258. 



&3. Length 7'50 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 whe'eu ; May to Sept. 



Wilson's Thrvsh, page 254. 



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

 olive-green,. 



fi. 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, 

 r^.JCV/^Ti'; May to Sept Oven-bird, page 232. 



