Artificial Key 31 



Crown not different in color from the rest of the head. 

 Go to 122. 



122. White wing-bars present. Go to 123. 

 White wing-bars not present. Go to 128. 



123. Tail with white blotches. Go to 124. 

 Tail without white blotches. Go to 125. 



124. Wings and tail nearly or quite black; beak conical. 



Goldfinch, Female or Male in Winter Plumage, 

 (p. 115.) 



Wings and tail brown; beak long and slender. Pine 

 Warbler, Female, (p. 73.) 



125. Bird very small; from top of head to tip of tail about 



four inches. Go to 126. 



Bird not extraordinarily small; from top of head to tip 

 of tail about five inches. Go to 127. 



126. Head and shoulders very large, so that the bird looks 



like a pygmy. Bird with us in summer. Least Fly- 

 catcher, Either Sex. (p. 134.) 



Head and shoulders not especially large. Bird with us 

 in spring and fall only. Ruby-crowned Kinglet, 

 Female, (p. 48.) 



127. Head bluish gray; throat white; sides of belly yellow. 



Blue-headed Vireo, Either Sex. (p. 83.) 

 Head brown; throat gray; sides yellowish gray; bird 



about six inches long from crown to tip of tail. 



Wood Pewee, Either Sex. (p. 135.) 

 Head brown or blackish; throat gray; sides brownish; 



bird about six inches and a half from crown to tip of 



tail. Phoebe, Either Sex. (p. 136.) 



