212 KEY TO THE BIRDS OF EASTERN NORTH AMERICA. 



Plumage, black; wiug, uuder 11.50; tarsus, uuder 2.10; bill, under 1.80. 



Fish Crow. 



Curvus ijS!iifra(/ns, 

 See No. 3G8. 



Group 6. Wing, over 15 inches long. 



Raven. 



General plumage, black. 



Raven. 



Oorous aimx principalis. 

 See No. 305. 



