A CHANGE OF DIET 



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because the insect food grows scarce. With less constancy 

 the fieldfares and redwings and some other winter visitors 

 come for particular berries. Our own birds must live by 

 their wits, taking the foods in their seasons, and, when com- 

 petition is very keen or temptation strong, trying new sources. 

 But whatever they try, all of them perhaps do more good 

 than harm, if all do not confer the inestimable benefits of 

 the green plover, which we may take to be the prime 

 benefactor. 



