(860) Phylloscopus fuscatus fuscatus.
The Dusky Willow-Wabbles.
Phyllopneuste fuscata Blyth, J. A. S. B., xi, p. 113 (1842) (Calcutta). ' Phylloscopus fuscatus. Blanf. & Oates, i, p. 405.
Vernacular names. None recorded.
Description. Whole upper plumage brown, the feathers of the wings and tail edged with a paler, more olive, brown; a distinct supercilium from the nostrils to the nape pale buff; lores and behind the eye dark brown ; cheeks and ear-coverts light buffy-brown; below buff, albescent on the chin, throat and centre of abdomen, deep and rich on the flanks, vent, under tail-coverts, under wing-coverts and axillaries.
Colours of soft parts. Iris brown; bill above pale horny-brown, below yellowish except at the tip; legs and feet dusky flesh-colour, the soles yellower.
Measurements. Total length about 125 to 130 mm.; wing 55 to 62 mm.; tail 51 to 54 mm.; tarsus about 22 mm.; culmen 10 to 11 mm.
Distribution. Siberia, from the Tenesei to Ochotsk, N. China, Mongolia and Japan. Winter in North-East and North Central India, Burma, South to Tenasserim, South China. A few birds apparently stop in the Himalayas to breed.
Nidification. Eggs sent me from the Amur and from Tibet are pure white and are said to have been taken from nests made entirely of dry moss with a lining first of grass and then of wool and feathers. In Tibet the nests were taken in the end oil May and June, but those from Siberia in July. The eggs measure about 17.6 x 12.6 mm.
Habits. Stevens obtained specimens of the Dusky "Willow-"Warbler in the plains of Assam as late as the second week in May. In Cachar, the Khasia Hills and country South of the Brahmaputra and in Burma they have nearly all disappeared by the end of April. They frequent scrub, low bushes and heavy grass, also often feeding on the ground. It is an active little bird, but seems to be a very quiet one.