18(5 



KEY TO THE BIRDS OF EASTERN NORTH AMERICA. 



Group 5. Wing, over 15 inches long. 



Bill, l)lack; ijcueral plumage, tawny black and white; horn-like tufts of 



feathers over the eyes. 



Great Horned Owl. 



Bubo ririjiiiiaiiKs^ 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. 



Nyctca mjctca. 

 See Xo. 312. 



Bill, 3-ellowish; no horu-like tufts of feathers over eyes; general plumagr, gray 

 mixed with white and dark browu. 



Great Gray Owl. 



Scotiaptex cuicrca. 

 See Xo. 304. 



(iicat Gray Owl. 



Great Horned Owl. 



