THE BLUE ROCK-THRUSH. 
11 
Bill black ; gape yellow ; irides dark brown ; feet vinous brown or 
black ; claws blackish : female — bill dusky ; mouth and gape yellow ; irides 
brown ; tarsi dark brown ; the toes blackish. {Scully.) 
Length 9*4 inches^ tail 4"2_, wing 4*9^ tarsus I'l^ bill from gape 1'2. The 
female is rather smaller. 
The Chestnut-bellied Rock-Thrush is stated by Capt. Wardlaw Ramsay 
to have been obtained by him on the hills east o£ Tonghoo. There is no 
other record of its appearance in British Burmah. 
It inhabits the Himalayas^ from Kumaon to Assam. Dr. Jerdon pro- 
cured it in the Khasia hills^ and Col. Godwin-Austen in North Cachar. 
It ranges eastwards to Setchuen in Western China. 
It breeds in the Himalayas_, and it is probably a non-migratory species, 
as I can find no record of its occurrence in the plains. It frequents high 
forest and feeds on the ground. 
10. MONTICOLA CYANUS. 
THE BLUE ROCK-THRUSH. 
Turdus cyanus, Linn. Syst. Nat. i. p. 296. Petrocossyphus cyaneus, Jerd. 
B. Ind. i. p. 511 ; Hume Sf Henders. Lah. to Yark. p. 190 ; Sharpe 8f Dresser j 
B. Eur. ii. p. 139 j Bl. B. Burm. p. 99 ; Wardlaiv Ramsay, Ibis, 1877, p. 463. 
Cyanocincla cyana, Hume, Nests Eggs, p. 226 ) id. S. F. iii, p. 112 ; Hume 
8c Bav. S. F. vi. p. 247 ; Hume, S. F. viii. p. 94 ; Scully, 8. F. viii. p. 282. 
Monticola cyanus, Anders. Yunan Eiyed. p. 611 ; Legge, Birds Ceyl. p. 4605 
Seehohm, Cat. Birds B. Mus. v. p. 316. 
Description. — In the adult male in breeding -plumage the general colour 
is dark slate-grey, suffused with metallic cobalt-blue, most so on the 
head and least so on the under tail- coverts ; lores dark slate-grey; wings, 
wing- coverts and tail dark brown, the outer web of each feather margined 
with blue ; under tail-coverts with white tips and obscure subterminal dark 
bars. After the autumn moult most of the feathers have narrow greyish- 
white margins, those of the upper parts with obscure brown subterminal 
bars, and those of the underparts with darker brown subterminal bars, 
almost obsolete on the chin and throat ; these marginal and subterminal 
bars are cast during March, leaving the male in full breeding-plumage. 
The female somewhat resembles the autumn plumage of the male, but is 
much more brown, being far less suffused with blue; the whole of the 
underparts are pale whitish brown, slightly suffused with blue on the 
breast and belly, each feather having a dark-brown subterminal transverse 
band, which on the throat is continued on the margins of the feathers ; the 
axillaries and under wing-coverts have several transverse dark bars. 
