OJiS. Some of the Ganil)ia specimens lifive the tail-fcatbcrs sliglitly 

 lipped, and one speeiraeii has the outer pair of tlie feathers narrowly 

 ed{i;cd with white ; thighs and under wing-coveits in another (river 

 Volta) slightly tipped with white. 



U. Southern Race (P, niger, VieiU.). 



Advlt male. Underparts of the body black, but with a strong 

 brownish tinge; the abdomen, flanks, thighs, and under tail-coverts 

 dark grey, tipped with whitish ; most of the tail-feathers are tipped, 

 and the outermost pair externally broadly edged, with white ; bill and 

 claws black; iris dark hazel (Oaf ex). 



Adult femedes from South Africa resemble the males closely 

 in their ujiper parts: cheeks, throat, breast, abdomen, and flanks 

 dusky brownish black or dark ashy brown ; tail, under tail-coverts, 

 and thighs with white or whitish tips, the outer feathers broadly 

 edged with white. 



Ohs. Two adult males from Daniara Land, shot by Andersson in 

 the months of August and September, differ but slightly from the 

 Northern race: greater wing-coverts black, broadly tipped and nar- 

 rowly edged with white ; tail-feathers with narrow white tips, the 

 outer pair (in one specimen) broadly edged with white ; thighs and 

 under tail-coverts black, with whitish tips ; throat, breast, flanks, 

 and greater part of abdomen glossy black. 



In order to find out whether there are any differences in size be- 

 tween these two or three races, I have measured a large series of 

 these birds from different parts of Africa. The north-eastern and 

 the southern specimens are absolutely the same in size : those from 

 the Gambia and the river Volta seem to be a little smaller. 



Whig. Tail. Tarsus, 



in. in. in. 



c? . Angola 3-2 2-9 0'8 



c? . Damnra 3-15 275 I ^.„^ 



J. Damaia 3-3 3-0 f "°^ 



cJ . River CLalumna .... 3-3 3'0 ) f>.„ 



cJ . Pine Town 3-12 2-82 / \° 



S . Elands Post 3-32 3-02 f ^° 



cJ . Eiver Eamaqiiebau . . 3-2 3-02) "°^ 



2. Natal 2-92 2-6 



2 . Grahams Town 3'07 2-8 



5 . Tete 3-15 2-85 



o' . River Auseba 3-] 5 2-55 



J. Kokai 3'02 3-45 8 



cJ . Bard el Maiideb .... 3-3 2-9 0-78 



Ad. [cJ]. River Volta .. 3-0 2-65 0-75 



Ad. [ c? ]. River Volta . . 2-92 2-5 1 



Ad. River Gambia 2-85 2-5 | 



Ad. River Gambia 30 2-7 ^- 0-75 



Ad. River Gambia 3a.5 27 | 



Ad. River Gambia 3-12 2-8 J 



Hah. The whole of the Ethiopian Eegion from Abyssinia to the 

 Gambia and southwards to tlie Cape. 



