32 



KEY TO THE BIRDS OF EASTERN NORTH AMERICA. 



Qroup 5. Wing, over 8.50 inches long, 



Head and neck, black, easily distinguished 

 by the shape of the bill; a white line on bill. 

 Alca torda. Razor- billed Auk. 

 See No. 15. 



Murre. 



Head and neck, sooty brown ; bill pointed, no white line on bill. Una troile. Murre. 



See No. 13. 



* For directions for measurement, see page 9. 



