368 Capt. B. Alexander on the 



any cry or alarm-note ; but the male, u lien flying, makes a 

 peculiar noise with its wings, which can be heard at some 

 distance. On hearing it, the female at once quits the tree 

 where she is and follows the male. 



240. Mesopicus pyrrhogaster (Malh.). 



Mesopicus pyrrhogaster Hargitt, Cat. B. xviii. p. 373 ; 

 Reichcn. J. f. O. 1892, p. 18 (Togoland). 



Prahsu, Fumsu, and Kwissa. 



Common in the forest, haunting the dead trees in couples, 

 the two birds always keeping close to one another. In order 

 to ensure their places being known to each other, a loud 

 drilling tap, answered immediately by the partner, is made 

 use of. 



241. ViNAGO WAALIA (Gm.). 



Vinago waalia Salvad. Cat. B. xxi. p. 15 ; Hartert, Nov. 

 Zool. vi. p. 406 (Gambaga). 



Observed in small flocks at Gambaga. 



242. ViNAGo CALVA (Temm. & Knip). 

 Vinago calva Salvad, Cat. B. xxi. p. 20. 



Treron calva Reichen. J. f. 0. 1897, p. 8 (Togoland). 



The female of this Pigeon differs from the male in being 

 smaller, in having the vinous patch on the shoulder much 

 less, and little or no French grey on the nape. 



243. CoLUMBA GYMNOCYCLA Gray. 



Columba gymnocyclus Salvad. Cat. B. xxi. p. 257; Hartert, 

 Nov. Zool. vi. p. 406 (Gambaga). 



Gambaga. 



Our two specimens, which are in fresh plumage, are a little 

 paler on the upper parts than specimens from the Gambia 

 in the British Museum. Intermediate shades, however, 

 seem to occur between the dark forms and our paler examples, 

 the dark birds probably coming from countries nearer the 

 coast, where the rainfall is greater. We only observed these 

 Pigeons at Gambaga, Avhere they were very wild. They 

 breed in holes in steep rocky declivities. About the middle 

 of April they appeared in small flocks, in comjmny with 



