BLACK-COLLARED HAWK 



11. Busarellus nigricollis nigricollis (Latham) 



Black-collared Hawk 



Male. Length, about 455 mm. (18.00 in.); 

 tail, about 190 mm. (7.50 in.). Above bright 

 chestnut finely striped with black, head and 

 neck creamy buff, the crown washed with chest- 

 nut and narrowly striped with black; the longer 

 outer wing quills terminated with black; tail 

 chestnut crossed by black bands and black ter- 

 minally tipped with white ; lower throat conspicu- 

 ously black; remaining under parts bright chest- 

 nut, under wing coverts chestnut. Bill black; 

 feet yellow. 



Female. Length, about 558 mm. (22 in.) ; tail, 

 about 203 mm. (8.00 in.). Similar to male but 

 larger. 



Young. Above chestnut irregularly barred 

 with dusky; below variegated brown and chest- 

 nut. 



A fish-eating hawk, with broad wings and a 

 short tail resembling the osprey Pandion haliaetus 

 in flight. Very sluggish, tame and stupid; found 

 only along swampy river banks and in marshes. 

 Its chestnut coloration and light buff head and 

 neck render it absolutely unmistakable in life. 



12. Urubitinga anthracina anthracina (Nitzsch) 



Mexican Black Hawk 



Sexes alike. Length, about 595 mm. (23.50 

 in.); tail, about 230 mm. (9.00 in.). General 

 135 



