BOY BIRD HOUSE ARCHITECTURE 



Fig. 3. Chickadee Feeding. 



Domestic in habits, it frequents orchards 

 and gardens and builds close to human habita- 

 tions. 



Fig. 1 shows a bluebird at the entrance to 

 an artificially hollowed tree trunk, feeding its 



young. Fig. 2 shows another bluebird about 

 to enter a bird box. 



THE ROBIN. 



To many the robin is the most cherished 

 of birds and is found throughout the States 

 east of the Great Plains, and is represented 

 farther west and south by slightly different 

 sub-species. It breeds far north through Can- 

 ada, and is found even in Alaska. It is quite 

 fearless and will occupy a bird shelf close to 

 human habitation. The robin, however, re- 

 fuses the enclosed house and therefore the 

 front and one side should be made open. 



THE TITMICE. 



These birds, although insignificant in size, 

 have enormous appetites and feed chiefly on 

 email insects and their eggs that wholly escape 



