162 



KEY TO THE BIRDS OF EASTERN NORTH AMERICA. 



FAHILY FALCONID^E. 

 Hawks, Falcons, Eagles, etc. 



Toes, four, three in front, one behind ; toes, with strong, curved talons 

 or claws; bill, with cere (skin-like covering at the base); bill, strongly 

 hooked. 



Group 1. Wing, less than 8.50 inches long. 



Male. 



Female. 



Rump and upper tail coverts, rufous brown ; tail, more or less marked with 

 rufous brown; tarsus, less than 1.50; second primary, longest. 



Sparrow Hawk. 



Falco sparverius. 

 See No. 295. 



Rump and upper tail coverts, slaty brown; tarsus, over 1.50; fourth primary, 

 longest. 



Sharp-shinned Hawk. 



Accipiter velox. 

 See No. 266. 



