FAMILY FALCONID^E. HAWKS, FALCONS, EAGLES, ETC. 177 



General plumage, entirely sooty brown or black ; primaries and tail, with more 

 or less white or gray. 



American Rough-legged Hawk (black plumage). 



Archibuteo layopus sancti-johannis. 

 See No. 281. 



Section 2. Third primary, longest ; tarsus, not wholly 



feathered. 



\Ving, less than 19; a part of inner web of outer primaries, white, showing 

 numerous imperfect bars ; thighs, black or dark brown ; face, bare. 



Audubon's Caracara. 



Polyborns cheriway. 

 See No. 297. 



in, from 16.90 to 21 ; a part of inner web of outer primaries, white, showing 

 numerous imperfect bars ; three outer primaries, notched ; belly and thighs, 

 pure white ; back, dark brown. Fish Hawk. 



Pandion halinetus carolinensis. 

 See No. 285. 



Wing, less than 19; primaries, dark slaty blue, showing greenish tinge when held 

 in the light ; two outer primaries, notched ; tail, long and forked ; underparts 

 and thighs, pure white. Swallow-tailed Kite. 



Elanoides forficatus. 

 See No. 261. 



