180 BIRDS IN THEIR RELATIONS TO MAN. 



by F. L. Harvey contained more than six hundred insects, 

 gnats, beetles, flies, ants, and grasshoppers. Professor Her- 

 rick has found that the young are fed largely on firefly beetles. 

 The nighthawk frequently suffers from the thoughtless 

 cruelty of amateur gunners who shoot at them as they fly in 

 the air. This is unworthy u sport" for boy or man. These 

 birds are not only very useful as insect destroyers, but, as Mr. 

 E. B. Williamson has written, they are also "handsome birds, 

 adding much to the twilight beauty of a summer evening as 

 the scattered flocks pass with easy and graceful flight over 

 fields and woodland." 



THE LUNA MOTH. 

 Slightly reduced. 



