FAMILY FALf'ONlD.K. MAWKS, FALCONS, KA(ilJ:s, KT('. 11)7 



Fourth outer i)iini.ir\ . decidedly notched; uimIit siiif;ic(! of outt^r priniiirics, not 

 heavily barred with dark brown and white; tail, less tliau '.».">(); upprr 

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



Butcu liiiiiUit.s^ and races, 

 Scc! Xo. 275. 



Uuder aurfare of priniaiics, heavily haired with dark hrowu and while; wiiij;, 

 under 11. 5U. Cooper's Hawk. 



Ai'ci'piti')' roiijirri. 

 See No. 2(;7. 



Belly, white, without -ireaks or hars. Short-tailed Hawk. 



Buti'i) hntrlii/Knis. 

 See No. 2"!l. 



Belly, black; j^cneial i)luiua>;e, hlack (l)lack pluise). Short-tailed Hawk. 



Bulcit hrnc/iyiinis. 

 See Xo. 2711. 



Group 4. Wing, 13 to 15 inches long. 



Section 1. Second primary, longest; first and second 

 primaries, emarginate, or notched. 



Length, always under 19; primaries, lioary j^ray, without bauds 



White-tailed Kite. 



EJnnus lencnrus. 

 See Xo. 2G2. 



First primary, pale brown, with uuinerous bauds ou inuer web; length, usually 



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



Falro inf'.n'ritni(s. 

 See Xo.200. 

 liCugth, always over lit; uuder tail coverts, spotted, or washed with dusky. 



Gray Qyrfalcon. 

 Falco riislicolus, and races. 

 See Xo. 287. 



Length, always over 11); uuder tail coverts, white, without spots. White Gyrfalcon. 



Falco islandiis. 

 See No. 286. 



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



Basal portiou of tail, white, barred with black, or brown; eud of tail, black. 



Audubon's Caracara. 

 Foli/horns chiriiray. 

 See Xo. 297. 



