148 TREE WOUNDS AND DISEASES 



Birds, especially the starling, woodpecker, 

 rook, pheasant, and partridge, are valuable for 

 destroying the larvae of many insects, and 

 should be encouraged. Both the partridge 

 and pheasant eat numbers of wireworms ; the 

 starling, multitudes of the oak-leaf roller moth ; 

 while both bark- and wood-boring insects are 

 devoured by the woodpecker. 



