herons or a mob of screaming, angry gulls would make things 

 very uncomfortable for a solitary hawk' or eagle. Such climb- 

 ing carnivorous animals as bears, lynxes, bobcats and raccoons 

 could climb to some of the nests but in many cases they would 

 be afraid to trust themselves to the topmost slender branches 

 of tall trees and they could certainly not get out of a heronry 

 without having their eyes picked out and their hides punc- 

 tured. 



14 



