FAMILY FALCONID.'E. HAWKS, FALCONS, EAGLES, ETC. 1()7 



Fourth outer primary, decidedly notched; under surfaee of outer primaries, not 

 heavily barred with dark brown and white; tail, less than 9.50; upp( r 

 surface of tail, with distinct white bars. Red=shouldered Hawk. 



Buteo Uneatns, and races. 

 See No. 27.5. 



Under surface of primaries, Ixeavily barred with dark l)ro\vn and wliiti^ ; wiii^-, 

 under 11.50. Cooper's Hawk. 



Accii'iitcr coii/n'ri. 

 ,See Xo. 2G7. 



Belly, white, without streaks or bars. Short=tailed Hawk. 



Bnli'i) hnirjiyiinix. 

 See No. 270. 



Belly, black; general plumage, black (black ijhase). Short-tailed Hawk. 



Butrn hrarjiijnfns, 

 Sc'c No. 279. 



Group 4. Wing, 13 to 15 inches long. 



Section 1. Second primary, longest; first and second 

 primaries, emarginate, or notclied. 



Length, always under 19; primaries, hoary gray, without bands 



White=tailed Kite. 



Elaiins leucnnis. 

 See No. 262. 



First primary, pale brown, with numerous bauds on inner web ; length, usually 

 under 19 (some females are longer). Prairie Falcon. 



Fah'o lacxirauHs. 

 See No. 290. 

 Length, always over 19; under tail coverts, spotted, or washed witli dusky. 



Gray Qyrfalcon. 



Falcii riiaticiAus^ and ran-s. 

 See No. 287. 



Length, always over 19 ; under tail coverts, white, without spots. White Qyrfalcon. 



Falco islaniliiii. 

 See No. 286. 



Section 2. Third primary, longest ; face, bare. 



Basal portion of tail, white, barred with black, or brown; end of tail, black. 



Audubon's Caracara. 



Pohjhontu dit'i-ivmy. 

 See No. 297. 



