144 



PROTECTION AGAINST BIRDS. 



Dobner, Vogt, the brothers Miiller, Taschenberg, Borggreve, 

 Nordlinger and others consider that the utility of woodpeckers 

 outweighs the harm they may do, and Hess expresses himself 



Fig. 55 Scots pine cones fixed Fig. 56. Spruce cone attacked by 



into a tree by woodpecker woodpecker. 



(^ nat. size}. 



as of the same opinion, from the most recent observations on 

 the subject. 



3. Damage done by Woodpeckers. 



Woodpeckers eat forest-seeds, peck wounds in saplings, and 

 holes in sound poles and trees ; they girdle sound trees and 

 destroy telegraph-poles and wooden roof-shingles. 



