MICRATHENE. 267 
United States (southern Arizona and southeastern California) and Lower 
California, south to southern Mexico (Puebla and Guanajuato). 
381. M. whitneyi (Cooprr). Elf Owl. 
a’, 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, Hab. Socorro Island, western Mexico. 
M. graysoni Ripaw. Socorro Elf Owl.! 
1 Micrathene graysont Rivew., Auk, iii, July, 1886, 333. 
