W. R. OGILVIE-GRANT— AVES. 289 



a. [d*] innn. 100 miles W. of Entebbe, 4000 ft., Gth Dec. [No. 2020. G. L.] 



a. 



b. Irani. 120 miles W. of Entebbe, 4000 ft., 8th Dec. [No. 40. B. E. D.] 



c-l. 6 2 et 6 imra. Mubuku Valley, E. Ruwenzori, 5000 ft., 1st & 28th March. 



d. d. d. d. 



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

 m, n. 6 . Mokia, S.E. Ruwenzori, 3400-4000 ft., 8th May & 22nd June. [Nos. 1522. 



1 668. 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 Red-collared Whydah was not found on Ruwenzori above 5000 ft. — B. B. W .] 



Var. Coliuspasser concolor (Cass.). 



Coliuspasser conculor Reich. Vog. Afr. iii. p. 134 (1901) ; Shelley, B. Afr. iv. p. 44 (1905). 

 a. 6 . Mubuku Valley, E. Ruwenzori, 5000 ft., 28th 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 raelanistic form 

 of C. aniens 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 C. ardens and 

 C. 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. — 

 B. B. IF.] 



Coliuspasser soror (Reichenow). 



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

 (1905). 



a. 3 . 120 miles W. of Entebbe, 4000 ft., 9th Dec. [No. 44. B. E. D.] 



Iris dark brown ; bill and feet black. 



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

 <j)ccies was not met with on Ruwenzori. 



* Marked $ by Mr. Legge. 



vol. xix. — part iv. No. 39. — March, 1910. 2 r 



