Mountain-Bluebird 531 



After the breeding season small family parties wander 

 up the mountains to well above timber line ; probably 

 they find insects more abundant there late in the season. 



This Bluebird, like its eastern cousin, easily learns to 

 make use of nesting-boxes placed on trees and houses for 

 it, and will also build under a cornice or in any suitable 

 crevice about human habitations or barns. 



LL 2 



