910 REPORT OF STATE GEOLOGIST. 



p 2 . Color slate or ashy ; belly and first to third 

 tail feathers white. JUKCO. 132 



i z . Colors plain, somewhere or everywhere -streaked 

 or spotted. 



g 1 . Tail with two to four outer feathers more or 



less white. 



r 1 . Length over 7. CO; color above, male 

 mainly black; female mainly brown. 



PIPILO. 136 



r 2 . Length under 7.00 ; above brownish gray, 

 streaked with black and brown. 



POOC^TES. 126 

 q 2 . Tail with no white feathers. 



s 1 . Tail small and short; decidedly shorter 

 than wings; or else tail feathers nar- 

 row and sharp pointed. 

 t l . Size large ; tail and upper tail coverts 

 and wings mainly reddish brown. 



PASSERELLA. 135 

 t 2 . Size smaller; not reddish brown as 



above. 



u l . Breast more or less yellow; male 



with black patch. SPIZA. 141 



u 2 . Breast not yellowish ; spotted or 



striped above and below, or with 



narrow sharp pointed tail feathers, 



or both. AMMODRAMUS. 128 



s 2 . Tail as long as or longer than wing, or 



tail forked ; or head with black and 



white, or brown and lighter brown 



stripes. 



v l . Tail forked, middle feathers 

 shortest; adults not streaked or 

 spotted below. SPIZELLA. 131 

 v 2 . Tail not forked, the middle feath- 

 ers not shortest. 



w l . Plumage streaked or spotted 

 below, or crown chestnut. 



MELOSPIZA. 134 



w z . Plumage not streaked nor 



spotted below; or crown with 



black and white ; or brown 



and lighter brown stripes. 



x l . Wing over 2.75 ; head striped 



in adults, chestnut in young. 



ZONOTRICHIA. 130 



x 2 . Wing under 2.75; edge of 



wing yellow. PETJCJSA. 133 



