FIELD KEY. 



35 



red; song, a rambling recitative: "You see it — 

 you know it — do you hear me? " etc. 



Red-eyed Vireo, page 71. 



a^ Length 5.75 inches; a white line over the eye' 

 not bordered by black; prefers the upper branches 

 of rows of elms and other shade trees; song, a rich, 

 unbroken warble with an alto undertone. 



Warbling Vireo, page 'jt., 



a^. Length 4.00 inches; no white line over the eye; 

 eye-ring and wing-bars white; a tiny, unsuspicious 

 bird; flits about the outer branches of trees and 

 shrubs; wings twitched nervously; note, cack, 

 song, a remarkably loud, musical whistle. 



Ruby-crowned Kinglet, page 159. 



b. Back gray or bluish gray. 



fe\ Length 6.50 inches; a gray, crested bird; fore- 

 head black; no white in the tail; note, a whistled 

 peto, pcto, or hoarse de-de-de-dc; resident from 

 New York city southward. 



Tufted Tit, page 46. 



&^ Length 8.50 inches; a white band at the end of 

 the tail; a concealed orange-red crest; a bird of 

 the air, catching its insect food on the wing, and 

 occasionally sallying forth from its exposed perch 

 in pursuit of a passing Crow; note, an unmusical, 

 steely chatter Kingbird, page iii. 



c. Back brown. 



c\ Length 5.00 inches; a nervous, restless, excita- 

 ble bird; tail often carried erect; song sweet, 

 rapid and rippling delivered with abandon. 



House Wren, page 55. 



