58 The Natural tiistory of Selborne 



torpid state in the winter. But with regard to their migra- 

 tion, what difficulties attend that supposition ! that such 

 feeble .bad fliers (who the summer long never flit but from 

 hedge to hedge) should be able to traverse vast seas and 

 continents in order to enjoy milder seasons amidst the regions 

 of Africa ! 



