SILENT-WINGED OWLS OF NORTH AMERICA 



237 



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© National Geographic Society ,,„^ ^j, 



ONE REVEALS ITSELF IN TREE TOPS, THE OTHER HIDES IN HOLES 

 Ti 1- t,- 1 „„ nr, «1rl trpp cjtiih the American hawk owl of Alaskan and Canadian forests 

 awaks'th'nfomfnt to ^^vo^oS len fy down on unsuspecting rodents and birds, while the western 

 SUl;r3%Ws cio£totts ground ^.le^d^gon^ocr.^ ^-^Sl^, - 



^"o^ad'd^^yl^M^'^^hfburrowinli^owbnS of western North Amenca, 



will occupy any abandoned hole or perhaps dig its own. 



