RED-COLLARED HAWK" 



more than one half its length. Head, neck all 

 around, rump, and under parts, including under 

 wing surface, immaculate white; back, wings and 

 tail black glossed with green and purplish. Bill 

 black; feet light grayish blue. 



Easily recognizable by its conspicuous colora- 

 tion and long swallow tail. It has a remarkably 

 graceful, plunging flight. Nests in trees at a 

 great height, preys on reptiles, frogs, beetles, 

 grasshoppers, bees, and other insects, feeding on 

 the wing. 



17. Chondrohierax uncinatus (Temminck) 

 Red-collared Hawk 



Leptodon uncinatus STONE, Proc. Phila. Acad. Nat. Sci., 

 1918, p. 250. 



Sexes similar. Length, male about 407 mm. 

 (16.00 in.); female about 431 mm. (17.000 in.); 

 tail, (both sexes) about 190 mm. (7.50 in.). 

 General color bluish slate, browner below and 

 with narrow and irregular bars of white; tail 

 white crossed by two broad black bars; under 

 surface of wings barred. Bill black; cere and 

 bare skin of face yellow. 



First mature plumage. Slate replaced by 

 brown except on head ; under parts more broadly 

 barred tawny brown and white. 



Another phase of plumage. The tawny brown 

 below replaced by dark brown. 



Another phase. General color blackish gray, 

 the basal half of tail white. 

 130 



