CORVINELLA SOUZZ 239 
Nile district, and to be met with there in great numbers, 
frequenting the higher branches of the thickly-foliaged trees. 
When perched have a habit of jerking their tails up and 
down. Their note, he remarks, much resembles that of our 
Missel Thrush, and they feed both on insects and fruit. Mr. 
Butler met with these birds very constantly in the forests 
between Wau and Chak Chak in the Bahr el Ghazal, “generally 
in parties of seven or eight, when they played a game of 
‘follow my leader’ among the tree-tops. They were always 
remarkably wary, and it was difficult to get within shot of 
them.” 
Further south these Shrikes have been obtained in the 
Makraka and Kiri countries, and at Tarangola by Emin, also 
along the northern coast of the Victoria Nyanza from Uganda 
to Mount Elgon by Mr. Jackson ; at Kitoto, in Kavirondo, by 
Mr. Neumann, and at Sigeijo by Fischer, but it has not been 
recorded from further east or south. 
Corvinella souzz. 
Lanius souze, Bocage, Jorn. Lisb. 1878, p. 213 Caconda; Gadow, Cat. 
B. M. viii. p. 254 (1883); Shelley, B. Afr. i. No. 701 (1896); Ogilvie- 
Grant, Nov. Zool. ix. p. 468 (1902); Reichen. Vég. Afr. ii. p. 621 
(1903) ; Schiebel, J. f. O. 1906, p. 189, pl. G. fig. 1. 
Adult male. Forehead, crown and back ashy grey, inclining to white on 
the sides of the forehead and crown; lores and ear-coverts sooty-black ; 
a tinge of rufous on the sides and lower part of the upper back; outer half 
of scapulars white; tail dark brown, with broadish rufous bars on the centre 
feathers, while the others have white ends, rapidly increasing towards the 
external ones, which are white, with the exception of a dark brown band up 
most of the shaft; wings dark brown, with uniform rufous outer edges to 
the quills, except the innermost secondaries, which are rufous narrowly 
barred with black, like the broad outer edges of the wing-coverts; under 
* surface of quills with very pale rufous-buff inner margins; under wing- 
coverts and axillaries white; sides of head black, with the lower portion of 
the cheek white like the under parts generally, but the latter is tinted with 
grey on the flanks. Iris brown; bill and feet black. Total length 6:8 inches, 
culmen 0-6, wing 3:1, tail 3-3, tarsus 0-9. Bulwa, g (A. Sharpe). 
