ACA.NTHOPNEUSTE 415 



Coloration. So similar to P. viridanus, of which this is the 

 eastern form, as to require no separate description. P. -plumbei- 

 tarsus differs in having the median wing-coverts, as well as the 

 greater coverts, tipped wit h v yellowish white, thus having two wing- 

 bars. When the upper bar is abraded, it is difficult to separate 

 the two species. 



Upper mandible brown, lower clear yellow ; iris brown ; mouth 

 yellow ; legs pale plumbeous-brown, the toes tinged with yellow ; 

 claws pale horn-colour. 



Of the same dimensions as A. viridanus. 



The Phylloscopus seebohmi of Hume would now appear to have 

 been this species in spring plumage, and not A. viridanus, which 

 does not occur in Burma. 



Distribution. A common winter migrant to Southern Pegu, and 

 the northern portion of Tenasserim down to Mergui, from the 

 middle of September to the end of April. It appears to summer 

 in Turkestan aud southern Siberia. 



424. Acanthopneuste magnirostris. The Large-billed Willow- 

 Warbler. 



Phylloscopus magnirostris, Blyth, J. A. S. B. xii, p. 966 (1843) ; 

 Horsf. $ M. Cat, i, p. 336 ; Jerd. B. I. ii, p. 191 ; Brooks, J. A. S. B. 

 xli, pt, ii, p. 70, xliii, pt. ii, p. 247 ; id. S. F. iii, p. 243 ; Hume $ 

 Ddi\ S. F. vi, p. 352 j Hume, Cat. no. 5/56; Legge, Birds Ceyl. 

 p. 553 ; Seebohm, Cat. B. M. v, p. 47 ; Gates, 'B. B. i, p. 82 ; 

 Barnes, Birds Bom. p. 228. 



The Large-billed Tree- Warbler, Jerd. 



Figs. 130, 131. Bill and wing of A. magnirostris. 



Coloration. Upper plumage very dark olive-green, darker on the 

 head; wing-coverts and wings brown, edged with olive-green; the 

 median coverts with small, and the greater coverts with large, 

 yellowish-white tips, forming two wing-bars ; tail brown, edged with 

 olive-green on the outer webs, and tipped paler beneath ; eye-streak, 

 well denned and reaching to the nape, yellowish white ; lores and 

 feathers behind the eye brown ; ear-coverts yellowish white, suffused 

 with brown ; lower plumage pale yellow, suffused with grey on 

 the breast and flanks ; axillaries and under wing-coverts greyish 

 yellow. 



In summer the plumage becomes duller. 



Irides earth-brown ; legs carneous ; claws and feet yellowish 

 white ; bill horny (Gripps). 



