BIRDS OF PEASEMARSH 



rr' - 

 one of the best locations for a nest box, and is 



usually easier to protect than a tree. 



The bird landlord must not forget to protect 

 the trees on which the nest boxes are hung, so 

 that cats, squirrels, weasels or other four- 

 footed enemies of the birds cannot run up to 

 the boxes. A very easy way of doing this is to 

 put a piece of tin round the tree trunk. If 

 fastened to the tree in the form of a cone quite 

 a small piece of tin will answer the purpose. 

 This should be high enough so that a four- 

 footed creature could not jump from the 

 ground to the trunk above the tin. The trees 

 thus protected should stand apart from others, 

 so that a squirrel could not reach a box by 

 jumping over from another tree. 



[207] 



