910 Eeport of State Geologist. 



p-. Color slate or asliy ; belly and first to third 

 tail feathers white. . JuNCO. 132 



Colors plain, somewhere or everywhere streaked 

 or spotted. 



9'. Tail with two to four outer feathers more or 

 less white. 

 r^ . Length over 7.(0; color above, male 

 mainly black; female mainly brown. 



PiPiLO. 136 

 r-. Length under 7.00 ; above brownish gray, 

 streaked with black and browu. 



PoociETES. 1 26 

 (/■'. Tail with no white feathers. 



s'. Tail small and short; decidedly shorter 

 than wings ; or else tail feathers nar- 

 row and sharp pointed. 

 /'. Size large ; tail and upper tail coverts 

 and wings mainly reddish brown. 



Passerella. 135 



f^. Size smaller; not reddish brown as 



above. 



i(^. Breast more or less yellow; male 



with black patch. Spiza. 141 



U-. Breast not yellowish ; spotted or 



striped above and below, or with 



narrow sharp pointed tail feathers, 



or both. Ammodramus. 128 



s^. Tail as long as or longer than wing, or 



tail forked ; or head with black and 



white, or brown and lighter brown 



stripes. 



■)•'. Tail forked, middle feathers 



shortest; adults not streaked or 



spotted below. Spizella. 131 



r^. Tail not forked, the middle feath- 



» ers not shortest. 



?''^. Plumage streaked or spotted 

 below, or crown chestnut. 



Melospiza. 134 



«'-. Plumage not streaked nor 



spotted below ; or crown with 



black and white ; or brown 



and lighter brown stripes. 



r^ . Wing over 2.75 ; head striped 



in adults, chestnut in young. 



ZONOTRICHIA. 130 



X'. Wing under 2.75; edge of 

 wing yellow. Peitc^ea. 133 



