W. E. OGILVIE-GEANT— AVES. 343 



Mr. Woosnam states that this PufF-back Shrike was shot among the tree-tops and 

 that the specimen procured was the only one met with during the journey. 



Drtoscopus afpinis (G. R. Gray). 



Dryoscopus affinis Reich. Vog. Afr. ii. p. 590 (1903); Grant, Ibis, 1908, p. 290 [Ponthierville, 

 Upper Congo] . 



a. ? . Mawambi, E. Congo Forest, 3000 ft., 27th Oct. [No. 3644. B. B. W^] 



Iris orange ; bill black ; feet grey. 



This specimen, with its white lower back and pale grey rump, is a typical example 

 of B. affinis, which, according to Keichenow, is the East African representative form. 

 As already remarked in my paper referred to above, it is very doubtful whether the 

 West African examples, which have been separated under the name of D. senegalensis 

 (Hartl.), are really distinct from I), affinis. 



[A single example of this Puff-back Shrike was obtained in the Congo Forest near 

 Mawambi, but its note was frequently heard high up in the trees. — B. B. W.} 



Drtoscopus holomelas Jackson. 



Dryoscopus holomelas Jackson, Bull. B. O. C. xvi. p. 90 (1906) ; id. Ibis, 1906, p. 551 

 [Ruwenzori]. 



a-l. c? ? . Mubuku Valley, E. Ruwenzori, 6000-9000 ft., 9th-27th Jan. [Nos. 78, 



d. d. d. d. 



119. B. E. J). ; 1123, 1124, 1137, 1164. B. C. ; 2075, 2106, 2115, 2124. G. L. ; 3088. 



B. B. TT.] 



m. ? . Mubuku Valley, E. Ruwenzori, 7000 ft., 24th Feb. [No. 3177. B. B. W.] 

 n-r. 6. „ „ 6000-8000 ft., 5th-24th March. [Nos. 189. 



d. d. 



B. E. D. ; 2239, 2240. G. L. ; 3207, 3247. B. B. W.] 



s. 6 . Butagu Valley, W. Ruwenzori, 7000 ft., 1st Aug. [No. 3526. B. B. W.] 



Iris dark brown or reddish-brown ; bill and feet black. 



This small-billed species is quite distinct from JD. leucorhynchus (Hartl.), and has the 

 black plumage of a rather duller and greyer shade, while in the latter it is purplish- 

 black. 



All the specimens procured by the Expedition appear to be fully adult birds with 

 black bills. 



[This Black Bush-Shrike was found on Ruwenzori at elevations of from 6000 to 

 9000 ft. It is really a bird of the forest-zone, but it is occasionally met with lower 

 down as well as in the bamboo-zone above. It has the most marvellously versatile range 

 of notes it is possible to imagine. From the depths of some tangled mass of creepers 

 one might hear, first a low harsh scraping or chattering sound, followed by some 

 of the most beautiful flute-like notes. After a moment or two of silence an 



