592 Mr. W. R. Ogilvic-Graiit on 



as C. gularis, killed iu January, May, August (in partial full 

 plumage), October, and December; also many specimens iu 

 full adult plumage collected in February, March, July, 

 August, September, November, and December. There can 

 be no doubt that birds of the C. gularis type, in grey 

 plumage and with the throat metallic green, are immature. 

 There is no reason to suppose that the males when they have 

 once assumed adult plumage ever lose it after the breeding- 

 season. \_Cf. Shelley, t.c. p. 47.] 



105. CiNNYKIS OSIRIS. 



Cinnyris osiris (Finsch) ; Shelley, ii. p. 53 (1900) ; 

 Ogilvie-Cirant & ]leid, Ibis, 1901, p. G35. 



Cinnyris mariquensis hawkeri Neumann ; Ueich. iii. p. 480 

 (1905); Neumann, J. f. O. 1906, p. 251. 



The Abyssinian Bifasciated Sunbird was met with at 

 Lakes Koya, Zwai and Helene, between December and 

 February, all the males being in full adult plumage, except 

 two specimens, which show a mixture of greyish feathers on 

 the bi'cast and belly : there is also an adult male shot in 

 Konso in August. 



C. m. hawkeri is based on birds in freshly moulted plumage. 

 The differences in the metallic colours are due entirely to 

 exposure, the green feathers becoming more copper-coloured 

 as they become worn. 



106. Cinnyris affinis. 



Cinnyris aji?iis Riipp, ; Shelley, ii. p. 64 (1900). 



A series of examples of the Abyssinian Yellow-breasted 

 Sunbird were collected near Addis Abbaba, and at the Gibbe 

 and Didessa Rivers, also in Wandu, Gamo, Walamo, and at 

 Lake Zwai. 



All five males obtained between August and October are 

 in full plumage ; while all those met Avith in April and May 

 are changing from what appears to be an immature plumage, 

 brownish-grey above and pale yellow below, to the adult 

 plumage ; two male specimens obtained in June and July 

 are in nearly full plumage. The out-of-plumage males 

 killed in April and May seem to be adult, judging by the 



