KEY TO THE BIRDS OF EASTERN NORTH AMERICA. 



Group 5. Wing, over 15 inches long. 



Bill, black; general plumage, tawny black and white; horu-Hke tufts of 



feathers over the eyes. 



Great Horned Owl. 



Bubo virginianus, and races. 

 See No. 309. 



Bill, black; general plumage, white, usually more or less marked with slate 

 brown, or dark brown ; no horn-like tufts of feathers over the eyes. 



Snowy Owl. 



Nyctea nyctea. 

 See No. 312. 



Bill, yellowish ; no horn-like tufts of feathers over eyes ; general plumage, gray 

 mixed with white and dark brown. 



Great Gray Owl. 



Scotiaptex cinerea. 

 See No. 304. 



Great Gray Owl. 



F^5c^"f**?r^A5* ; iCj^?l*? 

 sr-7 liSsS^O^t^ 



"H^ 

 Great Horned Owl. 



