(866) Phylloscopus proregulus newtoni.
Pallas's Himalayan Willow-Warbler.
Phylloscopus newtoni Gatke, Ibis, 1889, p. 579 (India) (Darjiling, Ticehurst).Phylloscopus proregulus. Blanf. & Oates, i, p. 408.
Vernacular names. None recorded.
Description. Broad supercilia and abroad yellow coronal streak to the extreme back of the nape; head dark olive-brown, becoming lighter on the back; ramp bright yellow; tail olive-brown, the feathers edged with olive-yellow; wing-feathers brown, edged with olive-yellow, the median and greater coverts tipped with pale yellow, forming two wing-bars, the anterior not always very distinct; lower plumage white, suffused with grey on the throat and breast and with yellow on the abdomen.
Colours of soft parts. Iris brown; bill black, the lower mandible horny-brown, yellow at the base; legs and feet dingy greenish brown.
Measurements. Total length about 80 to 85 mm.; wing 49 to 55 mm.; tail 33 to 39 mm.; tarsus about 18 mm.; culmen about 9 to 10 mm.
Distribution. Nepal, Sikkim, Assam and Manipur. Chin Hills birds are, as might be expected, intermediate between this and P. p. forresti, but nearer the latter. Birds from Arrakan, the Central and Southern Burmese Hills are of this latter form, as are those from Siam.
Nidification. The only known nest of this bird was taken by Mr. W. P. Masson on the Singa Lila Ridge above Darjeeling on the 29th of May at an elevation of about 10,000 feet. The nest, which was sent me with the birds and eggs, was a very neat little ball of bark, moss, and lichen, well lined with soft body-feathers from Ithagenes and other birds. The three eggs were white with reddish spots in a dense ring round the larger end and very sparse elsewhere. They measure 14.2 x 10.4, 13.9 x 10.3 and 13.9 x 10.4 mm.
Habits. As far as is known, these differ in no way from those of the race P. p. simlaensis.