288 ZOOLOGICAL RESULTS OP THE RUWENZORI EXPEDITION. 



This species is most nearly allied to P. phcenicomera G. R. Gray, but is smaller ; the 

 bill is shorter, stouter, and deeper, its length being 16 mm., and the depth of the upper 

 mandible at the gape 7 mm. (whereas in P. phcenicomera it measures only 5^ mm.) ; 

 the yellow shoulder-patch is much less extensive and is not continued over the 

 scapulars. Iris dark brown ; bill dusky; feet brown. Total length ca. 5"0 inches; 

 wing 2 - 55 ; tail T95 ; tarsus 0"82. 



[The only known example of the Thick-billed Bishop-bird was procured by 

 Mr. Gerald Legge on the northern slopes of Ruwenzori, below 4000 ft. — B. B. W7\ 



Ueobbachya phcenicea (Heugl.). 



Urobrachya phcenicea Reich. Vog. Afr. iii. p. 130 (1901) ; Shelley, B. Afr. iv. p. 65 (1905) ; 

 Grant, Ibis, 1908, p. 269 [Mufumbiro]. 



a-e. 6 et 6 imra. 120 miles W. of Entebbe, 4000 ft., 8th & 9th Dec. [Nos. 3041, 

 3042, 3043, 3049, 3050. B. B. W.] 



f. d . Mpanga Forest, Fort Portal, 5000 ft., 16th Sept. [No. 3575. B. B. W.] 



g. ? ■ Mokia, S.E. Ruwenzori, 3400 ft., 17th May. [No. 1577. I). C] 

 h. ? . „ „ 15th June. [No. 2402. G. L.~\ 



i. 6 . Fort Beni, Semliki Valley, 3000 ft., 20th July. [No. 483. B. E. 1).] 



k, 1. 6 ? . 60 miles N. of Fort Beni, 3500 ft., 16th Aug. [Nos. 1787, 1788. J). C] 



Adult male. Iris dark brown or dark hazel; bill light grey or bluish-white; feet 

 dark brown or black. 



Adult female. Iris dark brown or dark hazel ; bill brown or horn-colour; feet brown 

 or light brown. 



The adult males shot in July, August, and September are in full breeding-plumage. 



Three of the adult birds collected on the 8th and 9th of December have nearly 

 assumed their winter dress, while the fourth is still in the black breeding-plumage. 



The two females (Nos. 1577 and 2402) have the lesser wing-coverts conspicuously 

 margined with dark orange, forming a well-marked patch on the shoulder ; No. 1788 

 has the lesser wing-coverts rather inconspicuously margined with yellowish. All three 

 birds appear to be perfectly adult, and No. 1577 is marked " breeding " by Mr. D. 

 Carruthers. The pale-shouldered specimen (No. 1788) was one of a pair (of which 

 the male, No. 1787, is in perfect breeding-plumage) and is in worn plumage. Possibly 

 the orange shoulder-patch is not assumed till after the second moult. 



[Heuglin's Fan-tailed Whydah was seen throughout the journey from Victoria Nyanza 

 to the Congo Forest, but was not met with on Ruwenzori above an altitude of 

 5000 ft.— B. B. W.) 



COLIUSPASSER ARDENS (Bodd.). 



Penthetria ardens Jackson, Ibis, 1899, p. 598 [Entebbe]; 1906, p. 560 [Toro]. 

 Coliuspasser ardens Reich. Vog. Afr. iii. p. 135 (1904); Shelley, B. Afr. iv. p. 40 (1905). 



