MIDDENDORFF^S WILLOW- WARBLER. 79 
82. PHYLLOSCOPUS PLUMBEITARSUS. 
MIDDENDORFFS WILLOW- WARBLER. 
Phylloscopus plumbeitarsus, Swinh. Ibis, 1861, p. 330; Seebohtn, Ibis, 1877, 
p. 76 ; IIu7ne Dav. S. F. vi. p. 355 ; Brooks, S. F. vii. p. 508 ; Huine, S. F. 
viii. p. 102; Brooks, S. F. viii. p. 385; Bingham, S. F. ix. p. 187; Seebohm, 
Cat. Birds B. Mus. v. p. 45 ; Oates, S. F. x. p. 222. Phyllopneuste plum- 
beitarsa, David et Oust. Ois. Chine, p. 270. 
Description. — Male and female. Upper plumage olive-green, lighter oa 
the rump. Wings and tail brown, with the outer webs edged with olive- 
green. Wing-coverts brown, edged broadly with olive-green ; the median 
coverts tipped with yellowish white, the greater coverts tipped with the 
same colour to a greater extent, forming two wing-bars. A well-defined 
narrow eye-stripe reaching to the nape yellowish white. Lores and 
feathers behind the eye brown ; ear-coverts greenish yellow. Under 
plumage white, suffused with yellowish. Under wing-coverts and axil- 
laries pale yellow. 
In summer the plumage becomes paler. Just before the seasonal 
moults the upper wing-bar frequently disappears by abrasion, and the 
lower one becomes much less distinct. 
Upper mandible brown, lower clear yellow ; iris brown ; mouth yellow ; 
legs pale plumbeous brown, the toes tinged with yellow ; claws pale horn- 
colour. 
Length 4*2 inches, tail 1'7, wing 2*2, tarsus '7, bill from gape '6 : the 
second primary is intermediate in length between the seventh and the 
eighth, but occasionally equals the eighth; the first primary is rather 
large, measuring from '5 to "7 inch in length. 
Middendorff^s Willow- Warbler is a very common winter visitor to Pegu. 
I have observed it as early as the 17th of September, and it remains to 
the end of April or perhaps later. I have got it only at Kyeikpadein ; but 
I have no doubt it will be found all over Pegu. Mr. Davison appears to 
have procured it in December near Moulmein, and Capt. Bingham 
observed it in the Thoungyeen valley. Capt. Wardlaw Ramsay, according 
to Mr. Seebohm, met with it at Kyouk-kyee, which I take to be the town 
of that name lying between Shwaygheen and Tonghoo. There is no other 
record of its occurrence in Burmah. 
Dr. Tiraud gives it from Cochin China. It passes through China on 
migration, and appears to summer in Turkestan and Southern Siberia. 
This Willow- War bier is arboreal, frequenting thickly- foliaged trees and 
feeding on the insects which harbour under the leaves. It has a sibilant 
double call-note. Its nest has not yet been found. 
