38 FIELD KEY. 



b z . 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. 



WILSON'S THRUSH, page 159. 



c. Length under 9.00 inches; tail under 3.00 inches; 

 no wing-bars; back olive-green. 



c 1 . Length 6.10 inches; center of crown pale brown- 

 ish bordered by black; haunts on or near the 

 ground in woodland; a walker; song, a ringing 

 crescendo, teacher, teacher, TEACHER, TEACHER, 

 TEACHER OVEN-BIRD, page 64. 



3. Under parts not white or whitish, all one color, zvithout 

 streaks. 



A. Length 8.50 inches; slate-color; cap and tail black; 

 inhabits the lower growth; call-note, nasal; song 

 highly musical and varied CATBIRD, page 52. 



B. Length 7.20 inches; grayish brown; conspicuously 

 crested; a black line through the eye; tail tipped with 

 yellow; generally seen in small flocks; note thin and 

 weak CEDAR WAXWING, page 76. 



C. Length 5.50 inches; under parts cream-buff; a con- 

 spicuous whitish line over the eye; upper parts' reddish 

 brown; movements active; tail carried erect; haunts 

 lower growth; notes loud and striking; resident from 

 New York city southward. 



CAROLINA WREN, page 53. 



4. Throat and upper breast black or slate-color, very dif- 

 ferent from the white or chestnut belly. 



A. Throat black. 



a. Belly and rump chestnut; head, wings, and tail 

 black; length 7.30 inches; haunts orchards and shade 

 trees; song highly musical. 



ORCHARD ORIOLE, page 104. 



