TWO YOUNG NATURALISTS. 



239 



stood that some at any rate should not be exter- 

 minated : pigeons, for instance, that are domesticated 

 and used as food. 



" As for the birds of mixed qualities, it is difficult to 

 give any decided opinion as to how they should be 



A DESTEOYER DESTROYED. 



treated. For instance, the buzzards and the shrikes 

 destroy an enormous quantity of small rodents ; but 

 they also wage war against the birds that destroy 

 insects. 



" The blackbirds, warblers, sparrows, and redbreasts 



