Ground and Underground Nests 



probably it is merely as a protection against marauding 

 monkeys and reptiles. 



Another theory is that it affords protection to the hen 

 during her moult, for she moults while sitting ; but, as a 

 well-known naturalist says, this explanation seems " neither 

 logical nor plausible." There are certain tunnellers which, 

 like the burrowers, take possession of ready-made holes. 

 The starling, robin, wryneck and certain titmice are cases 

 in point. 



122 



