164 
BIRDS OF BRITISH BURMAH. 
with dusky, and the yellow of the lower plumage is less brilliant and suffused 
with a pale fulvous tinge. Generally some small trace of black may be 
found amongst the feathers of the back. 
The female in summer, according to Major Biddulph^ has the back strongly 
tinged with green, and a good deal of dusky green is mixed with the yellow 
on the nape. 
The female in winter appears to be quite similar to the male at the same 
season. 
Length 6*5 inches, tail 3'2, wing 3*4, tarsus 1*05, bill from gape '8, hind 
toe and claw '75. 
The allied species, B. citreolus, which inhabits both Europe and Asia, 
differs from the present in having the back in summer greenish slaty, 
with only a collar or patch of black on the hind neck. In winter the two 
species are very similar ; in B. calcaratus, however, both the bill and tarsus 
appear to be longer. 
The Black-backed Yellow Wagtail was procured at Pahpoon, in Tenas- 
serim, by Mr. Davison, but only one specimen appears to have been 
observed. I have never myself met with it. 
This species appears to be confined to the Indian peninsula and the 
Indo-Burmese countries. In winter it occurs in the plains as far south as 
the Deccan, and in the South-east Himalayas. Dr. Anderson also procured 
it to the east of Bhamo. In summer it seems to be found in Cashmeer 
and the North-west Himalayas. 
Mr. Theobald, who found the nest in Cashmeer, states that it is placed 
in a depression in soft earth beneath a rock, and that the eggs, four in 
number, are pale grey dotted with greyish brown and greyish neutral. 
Genus LIMONIDEOMUS, Gould. 
157. LIMONIDEOMUS INDICUS. 
THE FOREST- WAGTAIL. 
Motacilla indica, Gm. Syst. Nat. i. p. 962. Nemoricola indica, Jerd. B. Ind. ii. 
p. 226 ; Armstrong, S. F. iv. p. 329. Limonidromus indicus, Salvad. Ucc. 
Born. p. 261 ; Hume, S. F. iii. p. 142 ; Bl. B. Burm. p. 96 ; David et Oust. Ois. 
Chine, p. 305 ; Hume 8f Dav. S. F. vi. p. 364 ; Legge, Birds Ceylon, p. 614 ; Hume, 
S. F. viii. p. 103 ; Bingham, S. F, ix. p. 189. 
Description. — Male and female. Plumage above dull olive-green, the 
tail-coverts dark brown; ear-coverts and lesser wing-coverts also olive- 
green; a supercilium from the bill over the eye to the nape, the cheeks, 
chin, throat and all the lower plumage yellowish white ; two black bands 
