§2 FIELD KEY TO COMMON BIRDS. 



b. Crown not rufous or cliestnut. 

 ii. 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 high, clear, 

 musical whistle; call-note, chink. 



WniTE-THROATEu Sparrow, 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. 



Long-billed Marsh Wren, page 244. 

 2. Under parts white or Avhitish, streaked or spotted. 



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 Vesper Sparrow, page 184. 



b. Outer tail-feathers ?iot wliite. 



b^. 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, cliimp ; song musical ; a per- 

 manent resident !Song Sparrow, page 178. 



J*. Length 6'35 inches; bi'east 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 cinnamon-broxon. 



b^. 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 jjH oi' liquid quirt \ May to Oct. 



Wood Thrush, page 256. 



&2. Length 7*15 inches ; breast with 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 

 Nov Hermit Thrush, page 258. 



b^. 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 wheeu ; May to Sept. 



Wilson's Thrush, page 254. 



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

 oJive-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, 

 TEACHER; May X.o^e^\. Oven-bird, page 232. 



