BIRDS UNDER WATER 159 



kind, while there are very few sorts of divers 

 in hot countries. All through the warm seas 

 there are hardly any diving birds ; perhaps 

 the sharks, which are so common there, have 

 something to do with this, for a bird that goes 

 down deep for its food would certainly run a 

 great risk from these ravenous fish. And then 

 so many of the fish population which are of a 

 nice size for birds to eat are flying fish, in the 

 tropics ; and how are the birds to get on 

 when, after they have invaded the fishes' 

 home to chase them there, the fish turn the 

 tables on them by rising up and flying off into 

 the air like the birds themselves ? 



