BIRD BIOGRAPHIES 



to the Cascades and Sierra Nevadas; and the willumson 

 SAPSUCKER, from the eastern slopes of the Rocky Mts. 

 westward to the Pacific, and from Arizona and New Mex- 

 ico to British Columbia.* The last-named species is a 

 great devourer of ants. 



* Bulletin No. 37, U. S. Dept. of Agriculture, Biological Survey. 



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