228 BIRDS OF BRITISH GUIANA. 



Total length 212 mm., culmen 15, wing 132, tail 8D, tarsus 38, 

 middle toe and claw 29. 



The male described is from the Supenaam River. 



Adult female. Similar in plumage, but larger in size than the 

 adult male. Wing 1*50 mm., tail 106. 



Immature. Differs in being rufous brown above and banded 

 with rufous below. 



Breeding-season. Unknown in British Guiana. 



Nest. Unrecorded in British Guiana. 



Rjgs. Undescribed from British Guiana. 



Range in British Guiana. Supenaam River, Bartica, Lower 

 Mazaruni River, Arawai River (McConncU collection) ; C^arimang 

 River (TT7u7^///). 



Extralimital Ranrje. Brazil. 



Ilahits. Mr. J. J. Quelch (Timehri (2) vi. p. 142) gives the 

 following remarks on this species : — *'The Little Barred Sparrow- 

 Hawk {Accipiter tinus). This species does not seem to occur 

 commonly on the coast, preferring the higher and less frequented 

 parts of the interior. This is the first record of the species from 

 the CJolony.^' 



145. Accipiter bicolor. 

 Four-banded Sparrow-Hawk. 



Sparvins licolorWexW. N. Diet. d'Hist. Xat. x. p. 325, 1817 (Caj-enne). 

 Nisus sexfasciatns Cab. in Scliorab. Reis. Guian. iii. p. 780, 1848. 

 Accipiter bicolor Sharpe, Cat. B. Brit. Mus. i. p. 154, 1874 (British 



Guiana) ; Salvin, Ibis, 1886, p. 75 (Bartica Grove, Rorairaa, 3000 ft.) ; 



Quelch, Timehri (2) vi. p. 141, 1892; Brabom-ne & Chubb, B. S. 



Amer. i. p. 66, no. 606, 1912. 



"Red-legged Sparrow-Hawk'" {Quelch). 



Adidt male. General colour above dark brown with a tinge of 

 slate-colour on the back and wings ; primary and secondary quills 

 broadly notched with white on the inner webs, the white extending 

 to both webs on the innermost secondaries ; tail black with two 

 slaty-brown bands and paler at the tip ; under surface of body 

 pale slate-grey; axillaries, under Aving-coverts, and thighs rufous ; 

 under tail-coverts white tinged with buff. 



Total length 283 mm., culmen 19, wing 214, tail 151, tarsus 40, 

 middle toe and claw 34. 



Adult female. Similar to the adult male. Init diffei's in having very 

 conspicuous shaft-lines on the under surface, and being larger in 



