64 TTJRDID,E. 



Regulus trislis (B/i/fJi), Gray, Gen. B. i. p. 175 (1848). 

 Abrornis tiistis [Bii/'h), Bp. Com/), i. p. 200 (1850). 

 Plivllopneuste tristis (Bh/th), Gould, B. of Asia, pt. svii. (1865); 



Tacz. Bull. Sac. Zool. Fr. 1876, p. 140. 

 Phylloscopus brevirostris (Sfricli.) apiid Brnol;s, IJns, 1869, p. 236. 

 Sylvia tristis (B/i/f/i), Gray, Iland-l. B. i. p. 215. no. 3048 (1869). 

 Sylvia atiiuis {Hodys.), Gray, Iland-l. B. i. p. 217. no. oOS4 (1869). 

 Ficediila fulvescens, Severtz. Turkest. Jevotn. pp. 65, 126 (1873, see 



Ibis, 1876, p. 82). 

 Phyllopseustes tristis (Blyf/i), Meves, Journ. Orn. 1875, p. 430. 

 Plivlloscopus npirlectus, Hume apiid Seehohm l<,- Harvie Brown, Ibis, 



1876, p. 218. 

 Phvlloscopus brelimi, Homeyer apud Blanf. East. Persia, ii. p. 182 



(1876). 



Sprin<j plumage. General colour of the upper parts earthy brown, 

 very slightly suffused with yellowish green on the rump ; eye- 

 stripe huffish white, narrow, tolerablj' well-defined, scarcely reaching 

 to the nape ; lores and the feathers behind the eye dark earthy 

 brown ; wing-coverts brown, with slightly paler margins ; quills 

 hrown, showing traces of yellowish green on the outside edges, 

 and emarginated as far as the sixth quill ; tail-feathers brown, 

 showing traces of yellowish green on the outside webs, and narrowly 

 margined with grejush white on the inside webs. General colour of 

 the underparts nearly white, shadiug into pale buff on the breast, 

 flanks, and thighs ; axillaries and under wing-coverts yellow ; 

 inner margin of quills very pale huffish white. Bill Phylloscopine, 

 both mandibles dark brown. Legs, feet, and claws nearly black. 

 Third and fourth primaries longest; second primary eciual to the 

 seventh, or slightly shorter ; the exposed part of tlie bastard 

 primary 0*5 to 0"65 inch. Length of wing, male 2'58 to 2-33 

 inches, female 2'2.5 to 2-1 ; length of tail, male 2-3 to 2-2, female 2-0 

 to 1-9 ; length of culmen 0-45 to 0-48. 



Summer plumafie. The slight traces of yellowish green on the 

 outside web of the wing- and tail-feathers are soon lo.st by 

 abrasion. The underparts and the eye-stripe lose some of their 

 buff and become whiter, and, in verj- rare instances, the yellow on 

 the axillaries and under wing-coverts almost disappears. 



Autumn plumage. Yery similar to the spring plumage, but with 

 the buff on the eye-stripe and underparts more developed. 



Winter plumage. The abrasion which takes idace during winter 

 is somewhat less than is usuall}' the case in stimmer. 



The Siberian Willow- Warbler, or Siberian ChifichafF, breeds in the 

 valleys of the Petchora, the Obb, and the Yenesay, extending 

 northwards beyond the limit of forest-growth, and southwards as 

 far as Perm in the west and Yenasaisk in the east. It ])asscs 

 across the Kirghiz steppes and Turkestan on migration, and winters 

 in Baluchistan and the plains of India. It also breeds abundantly 

 in Cashmere and in the motuitains near Lake Baical. 



a, b, c. cJ ad. .^k. Baluchistan, March 23 AY. T. Blanford, Esq. [C.]. 



to April 7. 



d,e,f. AA.sk. Afghanistan (Grj^^A)- India Museum. 



ff. Ad. sk. Peshawur. India Museum. 



