Birds of Suuthern Cameroon. 487 



■without any change oC positionj when it flew away. It 

 might then easily aligiit elsewhere on any chance platform 

 o£ two or three dead twigs sufficient to support the eg^, and 

 by a few minutes' work make as good a nest as the one 

 had left. 



COLUMBA UNICINCTA. [Afcp.] 



Sharpe, Ibis, 190A, p. 94 ; 1907, p. 419. 



No. 3309, S (testes large). Assobam, Biimba R., Dec. 

 1908, Iris and skin around eye red ; feet pale blaish-grey ; 

 bill pale leaden-blue. Shot on a high limb of a tree over 

 my camp. There were two sitting siile by side, almost 

 touching one another, and a sound was heard to come from 

 one of them resembling the distant '' booming'' of the 

 Prairie-cock. This sound has often been heard in the forest 

 when the bird could not be found, being effectually hidden 

 in the top branches of the trees. These large Pigeons are 

 difficult to kill, and many a shot has been wasted on them. 



TURTUR SEMITORQUATUS. [Zum.] 



Bates, Ibis, 1909, p, 9. 



Sireptopelia semUonpiata Sharpe, Ibis, 190-1, p. 596; 1907, 

 p. 419. 



Two specimens examined had the rectrices twelve in 

 number and the wings diastataxic. 



Two more nests, each with two eggs and a third with two 

 nestlings, have been found — the single egg mentioned in my 

 previous paper {' Ibis,'' /. c.) must have been an exceptional 

 case. The eggs vary from 29 to 32 mm. in length and from 

 23 to 24*5 mm. in width. 



TURTURCENA IRIDITORQUES. 



Sharpe, Ibis, 1904, p. 94. 



No. 4334. S ad. Nos. 3792, 4292, 4328. ? ad. Bitye, 

 R, Ja, 



The females differ in plumage considerably from the 

 male, in the manner indicated in Reicheuow's descriptions. 

 My male specimen has one marked peculiarity, in that it 

 has the two central rectrices broadly tipped with yellowish- 



2 L 2 



