168 



ROSE-BREASTED GROSBEAK 



The Grosbeaks visited the field every day, and 

 when their young were old enough to travel the 

 whole family appeared on the scene, where their 

 proceedings were watched and chronicled by Pro- 

 fessor Beal. The young birds stood in an 



ex- 



FIG. 90. 

 Colorado Potato Beetles, eaten by Rose-breasted Grosbeak. 



pectant row on the topmost rail of the fence, and 

 their parents flew briskly back and forth bring- 

 ing them beetles. A few days later Professor 

 Beal revisited the scene of the massacre, and " not 

 a beetle was to be found, either old or young ; the 

 birds had swept them from the field and saved 

 the potatoes." 



But while we appreciate his services, our affec- 



