12 



Not almost white beneath, haunting meadows, 

 Rough-legged Hawk. 

 dd. Not notably black and white or fond of 

 water or open meadows, 

 e. ^Strong, aggressive birds with short, blunt 

 wings and long tail and feet. 

 Less than one-half of tarsus bare ; length 2 

 feet ; rare, Goshawk. 



Less than two-thirds of tarsus bare ; length 

 IJ feet ; common, Coopek's Hawk. 

 ee. Strong, aggressive birds with long, 

 pointed wings and short tail and feet ; 

 very rare. 

 Length about 1^ feet; dark bluish-ash 

 above, Duck Hawk. 



Length 2 feet ; not bluish-ash above, 



Gykfalcon. 

 eee. Heavy, woodland birds, with broad 

 wings and tail, the latter not notably long ; 

 rather slow ; common. 

 Area on breast white and unspotted ; gen- 

 eral cast of plumage not fulvous. 



Red-tailed Hawk. 



No unspotted area on breast ; general cast of 



plumage fulvous, Red-shouldeked Hawk. 



Group IL Birds of Medium Size. 



Swimming Birds of Ponds or Streams. 



A. Length 10 inches or less ; pure white beneath, 



DOVEKIE. 



B. Length over a foot. 



Dark slate color ; bill white ; length 15 inches. Coot. 



Dark brownish above ; shining white beneath ; length 



13 inches. Common Grebe. 



