Artificial Key 35 



Head and back olive-brown, becoming tawny on the 

 tail; breast often yellowish white. Hermit Thrush, 

 Either Sex. (p. 43.) 



146. Beak slender and ah inch or more long; legs bare for 



some distance above the first joint. Spotted Sand- 

 piper, Either Sex. (p. 152.) 



Beak not more than half an inch long; legs not bare 

 above the first joint. Go to 147. 



147. White markings somewhat conspicuous on head, wings, 



throat, or tail. Go to 148. 

 No white marking. Go to 149. 



148. Head with three longitudinal white stripes; wings spotted 



with white. Rose-breasted Grosbeak, Female. 

 (p. 99.) 



Outer tail-feathers largely white, showing when the bird 

 flies; no white wing-bars. Vesper Sparrow, Either 

 Sex. (p. 113.) 



149. Under parts very light; spots dark and sharply marked. 



Go to 150. 



Under parts grayish; spots not very dark, and gradually 

 shading into the general breast- color, so that they are 

 less conspicuous than in the first group. Go to 152. 



150. Brown of a dull, somewhat grayish, tinge. Go to 151. 

 Brown of a warm reddish tinge. Fox Sparrow, 



Either Sex. (p. 101.) 



Brown of a very dark shade, almost black; bird consid- 

 erably larger than a sparrow. Red-winged Black- 

 bird, Female, (p. 127.) 



