PALLAS^S WILLOW-WARBLER. 89 
92. PHYLLOSCOPUS PROREGULUS. 
PALLAS^S WILLOW-WARBLER. 
Motacilla proregulus, Pall. Zoogr. Rosso- As. i. p. 499. Reguloides chloronotus 
(Hodgs.), Jerd. B. Ind. ii. p. 197. Reguloides proregulus, Hume, Nests and 
Eggs, p. 368 ; Bl. B. Burm. p. 106 ; David et Oust. Ois. Chine, p. 274 ] Hume 
Dav. S. F. vi. p. 358; Hume, S. F. viii. p. 102; Scully, S. F. viii. p. 309; 
Brooks, S. F. viii. p. 392. Phylloscopus proregulus, Seehohm, Ibis, 1877, 
p. 104 ; id. Cat. Birds B. Mus. v. p. 71. 
Description. — Male and female. A broad well-defined coronal streak and 
a supercilium extending to the nape pale yellow ; the head dark olive- 
brown j upper plumage olive -brown^ lighter than the head ; rump bright 
yellow ; wings and wing- coverts brown^ the outer webs all margined with 
greenish yellow, the median and greater coverts broadly tipped with pale 
yellow, forming two wing-bars; tail olive-brown, edged with greenish 
yellow ; sides of the head mingled brown and yellow j lower plumage 
white, suffused with grey and yellow ; axillaries and under wing-coverts 
yellow. Before the seasonal moults, the plumage becomes much faded. 
Upper mandible black ; the lower mandible dusky, yellowish at the 
base ; irides dark brown ; gape orange ; feet dingy greenish brown ; claws 
dusky j soles yellowish green. (Scully.) 
Length 3*5 inches, tail 1*4, wing 2, tarsus bill from gape '42 : the 
second primary is intermediate between the eighth and ninth ; the first 
primary is nearly '6 inch in length. The female is very little smaller than 
the male. 
Pallas''s Willow- Warbler was procured by Mr. Davison in the pine- 
forests of the Salween, near Pahpoon, in Tenasserim, where he appears to 
have got only one specimen. It has not been recorded from any other 
part of Burm ah. 
This bird winters in South China, the Indo-Burmese countries. Northern 
India and Bengal. It breeds in South-eastern Siberia and also in the 
Himalayas. 
Captain Cock found the nest of this species in Cashmeer in May and 
June. The nest, which is domed or roofed and made of moss with a 
lining of feathers, is placed on a branch of a pine tree. The eggs, which 
appear to be usually five in number, are white marked with brownish red. 
