W. E. OGILVIE-GRAINT— AA'ES. 289 



a. [ d *] imm. 100 miles W. of Entebbe, 4000 ft., 6th Dec. [No. 2020. G. i.] 



a. 

 h. Imm. 120 miles W. of Entebbe. 4000 ft., 8th Dec. [No. 40. E. K D.'] 



c-l. d' ¥ et c? imm. Mubuku Valley, E. Ruvvenzori, 6000 ft., 1st & 2Sth March. 



d. d. d. d. 



[Nos. 177, 213, 227. R. E. D. ; 1406, 1407, 1419, 1420, 1421. R C. ■ 2257. G. L.'] 

 m, n. 6 . Mokia, S.E. Ruwenzori, 3400-4000 ft., 8th May & 22nd June. [Nos. 1622, 



1668. D. C] 



Adult male (in breeding-dress). Iris dark brown or dark hazel ; bill and feet black. 



Adult female. Iris dark hazel; bill and feet brown. 



Young males and females. Iris brown, dark brown, or dark hazel ; bill and feet 

 brown. 



[The Eed-collared Whydah was not found on Ruwenzori above 5000 ft. — R. B. W.^ 



Var. CoLiusPASSEE concolor (Cass.). 



CoHuspasser concolor Reich. Vog. Afr. iii. p. 134 (1904) ; Shelley, B. A£r. iv. p. 44 (1905). 



a. 6 . Mubuku Valley, E. Ruwenzori, 5000 ft., 2Sth March. [No. 2256. G. L.] 



Iris dark brown ; bill black ; feet dark brown. 



There can be very little doubt that the Black Whydah is merely a melanistic form 

 of C. ardens in which the scarlet or orange band across the chest, characteristic of the 

 typical form, is wanting. There are four male specimens of so-called C. concolor in 

 the British Museum and two in the Jackson Collection. Of these, four show no trace 

 of a pectoral band, but in two specimens it is very faintly indicated. These inter- 

 mediate forms are considered by Captain Shelley to be hybrids between G. ardens and 

 G. concolor, but the fact that the black form is found in widely scattered localities 

 along with typical specimens of C. ardens seems to indicate that it is merely a colour- 

 variety of that bird. 



[Cassin's Black Whydah was only met with on the plains below the mountains. — 

 R. B. W.'] 



COLIUSPASSEK SOROR (Reichenow). 



CoHuspasser soror Reich. Vog. Afr. iii. p. 138 (1904) ; Shelley, B. Afr. iv. p. 53, pi. 29. fig. 2 

 (1905). 



a. 6 . 120 miles W. of Entebbe, 4000 ft., 9th Dec. [No. 44. R. E. D.'] 

 Iris dark brown ; bill and feet black. 



A male of Reichenow's Yellow-shouldered Whydah assuming winter dress. The 

 species was not met with on Ruwenzori. 



* Marked J by Mr. Legge. 



VOL. XIX. — p.'VRT IV. No. 39. — March, 1910. 2 b 



