HAWKS 295 



303. SWAINSON HAWK. 



Differs from Red-shouldered in having 

 tail tipped with white; there is a dark phase 

 in which the under parts are dark brown 

 and intermediates occur between this and 

 light phase.' Young, ash-red beneath thickly 

 marked with drop-shaped streakings, espe- 

 cially across breast. Western N. A., east to 

 111.; casual to Mass, and Me. 



304. BROAD-WINGED HAWK. 

 Smaller than Red-shouldered, 15, there 



are two white bars only on tail. Young, 

 has throat whiter. Breeds throughout N. A. 

 from Fla. to New Brunswick; south in Oct. 

 to winter from Va. to northern S. A.; north 

 in April. Note, a squeaking whistle. 



305. SHORT-TAILED HAWK. 



A little larger, 16; dark brown above, 

 white beneath; seven ashy bands on tail; 

 reddish on sides of breast. Young, streaked 

 beneath; red of breast absent. A dark 

 phase has breast dark brown; forehead al- 

 ways white. S. A. north to Fla. 



