*58a. 
29 
Urotriorchis macrourus batesi, subsp. nov. 
(2 Bitye, R. Ja, Cameroons, April 17th, 
rola Gel. bates, im Coll. Ht Kirke 
Swann). 
Bates’s Grey Hawk. 
Above darker grey ; below darker chestnut ; 
wing $ 266-80, tail 365-85 ; wing 9 293-306, 
tail 385-400 mm. ; tail longer and wings 
shorter than in typical form. 
Cameroon, 
Gen. XXIII. PARABUTEO Ridgw. (1874). 
Type Buteo harrist Aud. 
Nostrils with bony tubercle near upper margin ; 
thighs with overhanging tuft of feathers ; tarsus 
scaled almost nght across and feathered further 
down than length ot middle toe. Size large 
59. 
T59a. 
(length about 23 in.). 
Parabuteo unicinctus umcinctus (Temm.), 
Pl. Col., pl. 313 (1824). [Brazil, type in 
Paris Mus. ] 
One-banded Buzzard-Hawk. 
Wing ¢ 295-332, 2 315-367 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. 
Parabuteo unicinctus harrist (Audub.), B. 
ie pl, cccxcu:, 183i; Orn. Biog.,.v:, 
p- 30. [Between Bayou Sara and Natchez, 
Mississippi.) 
Harris’s Buzzard-Hawk. 
Wing 3 315-340, 2 340-365 mm. ; general 
colour sooty black, tinged with chestnut 
on rump. (Female more brownish). 
S. America, S. 
to Chile on W. 
and Buenos 
Ayres on E. 
Central and N. 
America from 
Panama to 
Southern U.S. 
