HUME'S CUCKOO-SHRIKE. 
233 
Attention should be paid by field-ornithologists to the various changes 
of plumage in this and other birds of the genus. One fine adult bird of 
this species_, sexed as a male^ and procured at Malewoon by my men_, has a 
large patch of pure white on the wing. Another bird^ a female with barred 
under plumage, wants this patch. Five other birds^ apparently females^ 
all with barred under plumage^ have the patches of white on the wings 
large. In this species, therefore, it appears that the adult male has white 
on the wing, which is not the case with any other species of the genus. 
This species was discovered in Tenasserim by Mr. Davison, and he pro- 
cured it from Mergui down to Malewoon. In the British Museum are 
specimens from Cochin China [C. polioptera, Sharpe). 
224. CAMPOPHAGA INNOMINATA. 
HUME^S CUCKOO-SHEIKE. 
Volvocivora vidua (Hartl), apud Hume, S. F. v. p. 206 ; Hmne Dav. S. F. vi. 
p. 508; Hume, S. F. viii. p. 91. 
I am unable to refer to any species known to me the Volvocivora which 
Mr. Davison procured in Tenasserim^ and which Mr. Hume refers to 
V. vidua of Hartlaub. This latter bird is undoubtedly V. fimbjHata of 
Temminck. I have examined a considerable number of this species from 
Java, and find that in no case does the wing exceed 4*1 inches in length. 
Not only has Mr. Sharpe carefully catalogued these Cuckoo-Shrikes, but I 
have myself spent much time over them with a very large number of speci- 
mens before me, and I am of opinion that Mr. Davison's birds are unnamed. 
The following is Mr. Hume's account of the Tenasserim birds : — 
^^From the neighbourhood of Tavoy we have a series of Volvocivorae 
which cannot be referred to either F. melaschista, V. neglect a, V. inter- 
media, or V. cidminata, or even V. avensis. They are paler than V. inter- 
media and a fortiori than V. melaschista. They are darker than V. averisis 
and considerably larger ; very much larger, too, than V. neglect a and quite 
differently coloured to V. culminata. They answer precisely, with one 
exception, to Hartlaub's description of V. vidua (see S. F. v. p. 206), that 
exception being that generally the tivo outer pairs of tail-feathers, and 
sometimes three, have comparatively narrow white tippings, and they are 
apparently too large for V. vidua, of which the wing is given at 4*12. 
"In these Tavoy birds the wings vary from 4-65 to 5'0, and an old 
female has the wing 4" 85. 
" Possibly the wing in Hartlaub's type was imperfect, otherwise the 
paler rump, the paler under surface, the under wing-coverts concolorous 
