29 



*58a. Urotriorchis macrourus batesi, subsp. nov. 

 {? Bitye, R. Ja, Cameroons, April 17th, 

 1914, G. L. Bates, in Coll. H. Kirke 

 Swann). 

 Bates's Grey Hawk. 



Above darker grey ; below darker chestnut ; 

 wing $ 266-80, tail 365-85 ; wing ? 293-306, 

 tail 385-400 mm. ; tail longer and wings 

 shorter than in typical form. 



Cameroon, 



Gen. XXIII. PARABUTEO Ridgw. (1874). 

 Type Buteo harrisi Aud. 



Nostrils with bony tubercle near upper margin ; 

 thighs with overhanging tuft of feathers ; tarsus 

 scaled almost right across and feathered further 

 down than length of middle toe. Size large 

 (length about 23 in.). 



59. Parabuteo unicinctus unicinctus (Temm.), S. America, S. 



PI. Col., pi. 313 (1824). [Brazil, type in to Chile on W. 



Paris Mus.] and Buenos 



One-banded Buzzard-Hawk. Ayres on E. 



Wing S 295-332, ? 315-367 mm. ; general 

 colour blackish brown, variegated by 

 lighter spotting ; lesser wing-coverts and 

 thighs rufous ; tip and base of tail and also 

 tail-coverts white. 



t59a. Parabuteo unicinctus harrisi (Audub.), B. 

 Am., pi. cccxcii., 1831 ; Orn. Biog., v., 

 p. 30. [Between Bayou Sara and Natchez, 

 Mississippi.] 

 Harris's Buzzard-Hawk. 



Wing c? 315-340, $ 340-365 mm. ; general 

 colour sooty black, tinged with chestnut 

 on rump. (Female more brownish). 



Central and N. 

 America from 

 Panama to 

 Southern U.S. 



