464 THE NATIONAL GEOGRAPHIC ^lAGAZINE 



From a painting by I,ouis Agassiz Fuertes 

 OF Tlilv SFA'EX OWLS OEDIXARILV ENCOUNTERED IN THE UNITED STATES, THE ONEY 

 OXE THAT DOES MORE HARM THAN GOOD IS THE GREAT HORNED 



While most of the others occasionally kill a bird, they are, as a family, decidedly helpful 

 to man, killing vast quantities of mice, rats, gophers, and squirrels. They see by day just as 

 well as other birds. 



