HYPHANTORNIS JACKSONI 485 



April, when it was beginniag to assume the breeding plumage, 

 which was attained in May and the beginning of June, when he 

 met with them at Sennar, on the Blue Nile, in the Taka district 

 and along the Atbara. During the day they feed in pairs or 

 small flocks on the grassy plains, retiring with noisy cries and 

 a loud fluttering of the wings to roost in tall, thickly foliaged 

 trees as the night approaches. 



Hyphantornis jacksoni. 



Ploceus jacksoni, Shelley, Ibis, 1888, p. 293, pi. 7 Kilimanjaro ; Eeichen. 

 Vog. Afr. iii. p. 68 (1904). 



Hyphantornis jacksoni, Shelley, B. Afr. I. No. 557 (1896). 



Hyphantornis dimidiatus (non Salvad.), Sharpe, Cat. B. M. xiii. p. 459 

 (1890). 



Ploceus dimidiatus, Eeichen. Zool. Jahrb. 1886, p. 130, pi. 5, fig. 3. 



Type, adult male. Head and neck black ; entire back canary yellow ; 

 tail yellowish olive, with broad pale yellow inner edges to the feathers ; 

 scapulars like the back, but with blackish angular stripes on their outer 

 webs ; wings brownish black, with the lesser coverts mostly olive and the 

 margins of the other feathers yellow, broadest and brightest on the ends of 

 the median-coverts and on the inner half of the wing ; under wing-coverts 

 and broad inner edges to the quills bright pale yellow. The black of the 

 throat ends in a point on the crop ; remainder of the front half of the throat, 

 front and sides of the breast deep chestnut ; centre of breast, thighs and 

 under tail-coverts canary yellow, with a wash of rufous on the smaller tail- 

 coverts. "Iris orange red ; bill black; legs pale reddish brown." Total 

 length 5'5 inches, culmen 0-6, wing 285, tail 1-9, tarsus 0-9. Kilimanjaro 

 (Jackson) . 



Male, IV inter plumage. Differs in the upper parts being ashy brown, with 

 a slight yellowish tinge, yellower on the rump and mottled with dark brown 

 centres to the feathers ; sides of head and the under parts buff, the breast 

 slightly mottled with chestnut. With the exception of the brown mottling 

 of the breast it probably resembles the full plumaged female, which is not 

 known to me. Iris orange ; bill and legs pale. 3 . 12. 1. 00, Lake Bariugo 

 (Delamere). 



Jackson's Golden-backed Weaver ranges from the Albert 

 Nyanza and Victoria Nyanza to the Indian Ocean. 



The type was discovered by Mr. Jackson on Kilimanjaro, 



