96 Dr. F. E. Stoehr and Mr. W. L. Sclater on 



uttered iu a very liquid tone. In October one hears the song 

 prefaced by three or four low single notes, as if the bird were 

 practising. This Shrike is usually, though not invariably, 

 close to a stream. 



210. SiGMODUS TRICOLOR. (Zambesi Helmet Shrike.) 

 (a). Chiromwe, Oct. '03. 



(b) $ . Boundary, Nov. '03. 



(c) (d) ^ 9 . Kanyani, Mar. '04. 

 (e). Mtimba's, June '05. 



(/) ^ j^'^' Serenji, July '05. 



(g) $ . Karoka's, Sept. '05. 



Parties o£ the Zambesi Helmet Shrike are to be seen fairly 

 often in places where the trees are a good size, but not too 

 thick. They travel in the same way as Pr'ionops talacoma 

 (Smith's Helmet Shrike), but faster and with longer flights, 

 and this makes them rather hard to shoot. A flock of these 

 birds is nearly always accompanied by a Drongo. Whether 

 he robs them, or goes with them just for company, I cannot 

 say. 



211. Prionops talacoma. (Smith's Helmet Shrike.) 

 (a). Feira, July '03. 



(b). Chiromwe, Oct. '03. 

 (c) ^juv. Mtimba's, Feb. '05. 



This Shrike resembles the Zambesi Helmet Shrike, but flies 

 more slowly and is often found on low bushes. 



212. Crateropus jardinii. (Jardine's Babbler.) 

 (a). Feira, Sept. '03. 



215. Crateropus hartlaubi. (Hartlaub's Babbler.) 

 {a-d) $s & 9 s. Serenji, July, Aug. '05. 



219. Pycnonotus layardi. (Black-capped Bulbul.) 

 (a). Feira, Sept. '03. 



— . Andropadusmasukuensis (Shelley). (Masuku Bulbul.) 



(a) $ . Nr. Mpika's, Oct. '05. 



[This species is not included in the South African Check- 

 list. It was described by Shelley (' Ibis,' 1897, p. 534) from 

 Masuku, near the north end of Lake Nyasa.] 



