418 Mr. W. R. Osilvie-Grant on 
o 
The Grey- and- Yellow Bush-Warbler, so far as we are 
aware, has hitherto been met with only in Bogosland. 
52. Camaroptera brevicaudata. 
Sylvia brevicaudata Cretzschm. in Hiipp. Atl. Vog. p. 53, 
pi. 35 6 (1826). 
Camaroptera breincauda Sharpe, Cat. B. Brit. Mus. vii. 
p. 168 (1883) [part.] ; Witherby, p. 254. 
a-c. S ? • Kaka, 8tli-12th March. Nos. 128-130. 
d,e. ? . 20 miles N. of Fashoda, 13th and 16th April. 
Nos. 339, 363. 
Iris light brown or hazel; bill dusky, lighter on lower 
mandible ; legs and feet horn-coloured. 
As already pointed out [Ibis, 190], p. 648], these spe- 
cimens represent the true C. brevicaudata (Cretzschm.), 
a name which has been misapplied to the species ranging 
through Somaliland, Abyssinia, and thence to West Africa. 
The latter species, which should be known as C. chrysocnemis 
(Licht.), has the throat, breast, -sides, and flanks grey. In 
the birds before us from the White Nile, the throat and rest 
of the under parts are white, tinged with buff on the sides 
and flanks. Mr. Witherby noticed that the birds which he 
obtained were very light-coloured on the breast and throat, 
but attributed the difference to age. 
[This Green-backed Bush- Warbler reminds one of a Hedge- 
Sparrow in its habits. It comes round the camp and climbs 
about the zariba catching insects. It is very inquisitive and 
takes great interest in anything going on. It has a feeble 
song.— R. M. H.] 
53. Spiloptila clamans. 
Spiloptila clamans (Temm.) ; Sharpe, Cat. B. Brit. Mus. 
vii. p. 231 (1883) ; Witherby, p. 255 ; N. C. Roths. & 
WoUast. p. 15. 
a, b, (5^ t ? . Khartum, 25th Jan. Nos. 14 & 15. 
~ c. ^. Ed-Duem. 22nd May. No. 545. 
Iris light brown or pale yellow ; bill dusky, lower man- 
dible light at base; legs and feet pale horn-coloured. 
t Breeding*. 
