Hawks 



339. Red-shouldered Hawk {Buteo lineatus). L. 



cf, 18.3; V , 20. 3. Four outer primaries notched. Ads. 

 Lesser wing-coverts bright reddish brown. Yug. Be- 

 low whitish streaked with brownish; lesser wing-cov- 

 erts less reddish; primaries with rusty buff. Notes. A 

 loud screaming kee-ver, kee-ver. 



Range. — Eastern United States to Oklahoma, eastern Kansas, 

 eastern Nebraska and Minnesota, north to Maine, south to northern 

 Florida; generally resident. 



339a. Florida Red-shouldered Hawk (B. l.alleni). 



Smaller than No. 339- (W. o 7 '. "•) Ad. Much 

 grayer above, no rusty on head, much paler below. 



Range. — Florida north along coast to South Carolina; west along 

 coast to eastern Texas. 



339b. Red-bellied Hawk (B. 1. ehgans). Similar 

 to No. 3 3Q, but rusty of breast usually unbroken. 

 Young with lower parts deep brownish or dusky pre- 

 vailing; less buff on primaries. (Ridgw.) 



Range. — Pacific coast from Lower California north to British 

 Columbia; east rarely to Colorado and western Texas. 



342. Swainson Hawk {Buteo swainsoni). L. tf , 20. 



Three outer primaries notched. Ad. rf. Breast patch 

 rusty brown. Ad. ?. Breast-patch grayish brown. 

 Dark phase. Brownish black more or less varied with 

 rusty; tail obscurely barred. Yug. Below rich rusty 

 buff with elongate black spots. Notes. Pi-tick, pi-tick, 

 frequently repeated. (^Bendire.) 



Range. — "Western North America from Wisconsin, Illinois, Ar- 

 kansas and Texas to the Pacific coast; north to Arctic regions and 

 south to Argentine Republic, casual east to Maine and Massachu- 

 setts. Breeds nearly throughout its North American range." (A. O. 

 U.) 



343. Broad-winged Hawk (Buteo platypterus). L. 

 o 7 , 15.8; 9,16.7. Three outer primaries notched. Ads. 

 Tail with two whitish bands and a brownish tip; be- 

 low barred with rusty brown. Yug. No buff in prim- 

 aries; tail brownish with several black bars; below 

 whitish, streaked with blackish. Notes. A high, 

 sharp, keen, penetrating whistle. 



Range. — Eastern North America, breeds west to Plains, north to 

 New Brunswick and Saskatchewan: winters from southern New 

 Jersey south to northern South America. 



133 



