DIRECTORY TO BIRDS OF EASTERIST T^ORTH AMERICA. 165 



4*. FLORIDA RED-SHOULDERED HAWK, B. l. ai.- 

 LENi. Differs from 4 in being smaller and darker. South 

 Atlantic and Gulf States. 



5. SWAINSON'S HAWK, B. swainsoni. Three outer 

 quills incised ; male, 19.00 ; female, 20.00 ; brown above : wings 

 obscurely banded v/ith dusky; tail, tipped with whitish and 

 with about twelve bands of dusky ; white beneath, unmarked 

 on throat, elsewhere banded with ashy-red; there is a dark 

 phase in which the under parts are dark-brown, and interme- 

 diates occur between this and the light phase. Young, red- 

 dish-ash beneath, thickly marked with drop-shaped streak- 

 ings especially across breast. Western N. A. east to 111., cas- 

 ual to Mass. and Me. 



6. BROAD-WINGED HAWK, B. latissimus. Differs 

 from 4 in being smaller, 15.00-17.00 and in having two white 

 bars on tail, fig. 202. Young have the throat whiter. Breeds 

 throughout eastern N. A. from Fla. to New Brunswick ; goes 

 south in Oct. to winter from the Southern States to northern 

 S. A. ; comes north in April. Note, a squeaking whistle. 



7. SHORT-TAILED HAWK, B. brachyurus. 16.00; 

 dark-brown above with tail crossed by about seven bands of 

 grayish; white beneath, reddish on side of breast. Young, 

 more or less streaked beneath and the reddish on side of 

 breast is absent. There is a dark phase in which the lower 

 parts are nearly dark-brown ; forehead always white. S. A. 

 north to Fla. 



b. Feather-legg-ed Hawks. Archibuteo. 



Differ from a in being rather more robust, in having 

 smaller feet with tarsus feathered to toes ; gape, narrow ; food, 

 small animals ; not very active. 



1. AMERICAN ROUGH-LEGGED HAWK, A. bai^cti- 

 JOHAN MP. Male, 21.00 ; female, 23.00 ; dark-brown above ; tail 

 bands, white, 6 to 8; yellowish-white beneath ; band of spots 

 on breast and broad band on abdomen, brown; sides of head 

 and above more or less streaked with white and yellowish, 

 fig. 202; from this phase frequently vai7 3s to a ne?"ly black 



