HfeBl 



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i 





Fig. 54. Canyon Wren. A True Cave Dweller 



Nests of these wonderful singers were found in or near the en- 

 trances of many of the caves of the region. Drawing by L. A. Fuertes. 

 From Handbook of Birds of Western Vnited States. Permission of 

 Houghton Mifflin Co. 



13S 



