21% BIRDS OF BEITISH BURMAH. 
the wings and tail turn to blackish, and the nape-band becomes better 
defined. The changes take place very gradually by a change^of colour in 
the feathers themselves and not by moulting, and probably take two 
years at the least to be effected. 
In the adult the iris is pink, the eyelids pinkish ; the bill pink, more or 
less livid in places ; the inside of the mouth is flesh-colour ; the legs and 
toes are deep plumbeous, and the claws are dark brown. Young birds have 
the bill brown or black. 
Length 10*7 inches, tail 4, wing 6"1, tarsus 1*05, bill from gape 
The female is rather smaller. 
I have adopted Jerdon''s name of indicus in preference to diffusus of 
Sharpe, as the bird is well known under the former name, and Jerdon 
applied it without doubt to the present species. 
The Black-naped Oriole appears to be only a winter visitor to British 
Burmah. Mr. Blyth records it from Arrakan. In Lower Pegu, especially 
near the town of Pegu, I found it very common from October to February, 
but I failed to meet with it in the dry parts of Northern Pegu. Capt. 
Wardlaw Ramsay procured it in Rangoon, and Dr. Armstrong found it 
not uncommon in the Irrawaddy Delta. Mr. Davison met with it in 
Tenasserim from Thatorie down to Malewoon during the winter months. 
It has a very extensive range. In winter it is found throughout the 
whole peninsula of India, the Indo-Burmese countries, Siam and Cochin 
China. In summer it is spread over China and Mongolia, and even a 
portion of Eastern Siberia. 
This Oriole is found more frequently in forests than in gardens and 
compounds. It keeps to the trees, never descending to the ground. It 
has the same series of sweet whistling notes that the other Orioles have. 
It feeds chiefly on fruit, but I imagine that it must at times eat insects. 
It makes but a short stay in Burmah, arriving late and leaving early. 
207. ORIOLUS TENUIROSTRIS. 
THE BURMESE BLACK-NAPED ORIOLE. 
Oriolus tenuirostris, Bl. J. A. S. B. xv. p. 48 ; Hume, S. F. iii. p. 131 ; Bl. B. 
Burm. p. 140 ; Sharpe, Cat. Birds B. Mus. iii. p. 198 ; Hume ^ Dav. S. F. vi. 
p. 329 ; Hume, S. F. viii. p. 99 ; Scidhj, S. F. viii. p. 298. 
Description. — In general appearance similar to O. indicus. It differs in 
the following respects : — 
1. In having a more slender bill. 
2. In the wing-spot or yellow on the primary- coverts being larger, the 
length of the yellow marks being about three quarters of an inch. 
