INSECTS AND BIRDS. 



309 





BLUE JAY, A VALUABLE BIRD FOR THE FARMER. 



chickadees are doubly useful, because they guard the 

 trees during the entire year. When, in winter, most 

 other birds are absent these busy gleaners are search- 

 ing every crevice and cranny for the hibernating larvae, 

 pupae, or eggs of insects that have escaped the summer 

 birds. The chickadee ranks among the greatest enemies 



