MICRATHENE. 267 



United States (southern Arizona and southeastern California) and Lower 

 California, south to southern Mexico (Puebia and Guanajuato). 



381. M. whitneyi (Cooper). Elf Owl. 

 Prevailing tint deep brownish, the spots and bands more decidedly rusty ; bands 

 on tail broader, not interrupted on middle feathers; wing 4.05-4.25, tail 

 1.90-2.20. Hub. Socorro Island, western Mexico. 



M. graysoni Ridgw. Socorro Elf Owl.i 



1 Micrathene gvaysoni Ridgw., Auk, iii. July, 1886, 333. 



