330 ZOOLOGICAL RESULTS OE THE EUWENZORI EXPEDITION. 



Cinnteis stuhlmanni Reichenow. 



Cinnyris stuhlmanni Shelley, B. Afr. ii. p. 80 (1900) ; Reich. Vog. Afr. iii. p. 488 (1905). 

 a-d. d ? et 6 imm. Mubuku Valley, E. Ruwenzori, 10,000-11,000 ft., 27th- 



31st Jan. [Nos. 1203, 1204. B. C. ; 3128, 3140. R. R. W.] 



e-h. detd imm. Mubuku Valley, E. Ruwenzori, 9000-11,000 ft., 2nd-20th Feb. 



[Nos. 162, 162 a. R. E. I).; 1213. I). C. ; 3164. R. R. W.] 



i. 6 . Mubuku Valley, E. Ruwenzori, 11,000 ft., 5th April. [No. 3267. R. R. W.] 



Adult male and female. Iris dark brown ; bill and feet black. 



This remarkably interesting species was known only from male specimens procured 

 by Stuhlmann. The exact locality where they were obtained was not indicated by 

 the collector ; but, from the information now at our disposal, it is practically certain 

 that they were procured high up in the Butagu Valley on Western Ruwenzori. 



Adult male. Perfectly similar in plumage to the male of C. reichenowi, but much 

 larger. Culmen M-M5 inch ; wing 2-55-2-6 ; tail 2-25-2-35. 



Adult female. Similar to the female C. reichenowi, but much larger. Culmen 1'0- 

 11 ; wing 2-35-2-45 ; tail 1-7-1-9. 



Specimen 162 a, killed on the 20th of February, is an immature male in partially 

 adult plumage. 



[Stuhlmann's Double-collared Sun-bird, which is known only from Ruwenzori, 

 inhabits a belt little more than a thousand feet in width, and extending from about 

 10,000 ft. up to 11,200 ft. — that is, from the upper edge of the bamboo-zone to the 

 lower half of the tree-heath. It is by no means a common bird ; but is perhaps most 

 plentiful at 10,000 ft., just where the tree-heaths and bamboos intermingle, and it is 

 absolutely confined to that belt. The male has a short bright song, and, when in full 

 plumage, is a very handsome bird. When courting, it gives quite a miniature display 

 before the female, hopping around her with its wings droopiug and quivering, and with 

 the two beautiful yellow pectoral plumes raised and spread like fans at right angles to 

 the body. It is a curious fact that, except for its larger size, this Sun-bird exactly 

 resembles in every detail C. reichenowi, a species which is found 3000 ft. lower down 

 the mountains, and which also inhabits the surrounding plains. Possibly this increase 

 in size is the result of the cooler climate at higher altitudes. — R. R. W.] 



Cinnyris keichenowi Sharpe. 



Cinnyris reichenowi Shelley, B. Afr. ii. p. 82 (1900) ; Reich. Vog. Afr. iii. p. 490 (1905) ; 

 Jackson, Ibis, 1906, p. 556 [Ruwenzori]. 



a. 6 . Mubuku Valley, E. Ruwenzori, 6000 ft., 28th Dec. [No. 3056. R. B. W.] 

 h-e. 6 ? . „ „ 6000-7000 ft., 2nd-17th Jan. [Nos. 71. 



R. E. J). ; 1094. D. C. ; 2090. G. L. ; 3062. R. R. W.] 



