The Bluebird 



195 



the birds begin to look about for a suitable place 

 for housekeeping. 



The "bird-boxes" and small cavities in trees are 

 carefully inspected, until a spot is found to their 



THE "BLUEBIRD Box' 



liking. If the birds are not interfered, with, the work 

 of nest building progresses rapidly. But when the 

 bluebirds are once settled they are very determined, 

 usually succeeding in maintaining their own against 



