372 Capt. B, Alexander on the 



Our female specimen (2/3/91) agrees Avitli an example of the 

 same sex in tlie British Museum from Bogoslaud. 



This rare Hawk is a migrant in the Hinterland. It •was 

 observed in pairs from December till the beginning of 

 February. 



Adult female. Total length (in the flesh) 1G"5 inches, 

 wing IVG, tail 8*8, culmen 0'8, tarsus 1'9. Iris brown; 

 legs and feet greenish yellow; claws brownisli black; bill 

 bluish horn-coloured. 



258. Haliaetus YOCirER (Daud.). 

 Haliaetus vocifer Sharpe, Cat. B. i. p. 310. 

 Common on the lower reaches of the Volta River. 



259. Dkyotriokchis spectabilis (Schl.). 



Dryo trior chis spectabilis Shelley, Ibis, 1874, p. 90 ; Sliarpe, 

 Cat. B. i. p. 279 ; Oberholser, Proc. U.S. Nat. Mus. xxii. 

 p. 26 (Liberia). 



An adult male (17/3/00) from Prahsu. 



260. AsTURlNULA MONOGRAMMICA (Tcmm.). 



Astiirinula moiiogrammica Sharpe, Cat. B. i. p. 275. 



Kaupifalco monogrammicus Reichen. J. f. O. 1897, p. 10 

 (Togoland). 



Gambaga. 



During the dry season in the Hinterland, from November 

 to May, all the Falcons are more plentiful than at other 

 periods of the year. This is accounted for by the long grass 

 being burnt by the natives after the rains, when the ground, 

 being more clear, aff'ords a better opportunity to the Hawks 

 for observing their prey. 



261. ASTUR SPHENURUS (RUpp.). 



Astur sphenurus Sharpe, Cat. B. i. p. 112 ; Reichen. J. f. O. 

 1897, p. 10 (Togoland) ; Hartert, Nov. Zool. vi. p. 407 (1899) 

 (Gambaga). 



Gambaga. 



262. Ardea bubulcus (Aud.). 

 Hcrodias lucidus Shelley, B. Afr. i. p. 157. 

 Bnhulcus ibis Reichen. J. f. 0. 1897, p. 6 (Togoland). 



