(160) Trochalopterum subunicolor subunicolor.
THE PLAIN-COLOURED LAUGHING-THRUSH.
Trochalopterum subunicolor (Hodgs.), Blyth, J. A. S. B., xii, p. 952 (1848) (Nepal) ; Blanf. & Oates, i, p. 94.
Vernacular names. Tarmal-pho (Lepcha); Nabom (Bhut.).
Description. Forehead, crown and nape dark ashy-brown, the forehead tinged with fulvous; sides of neck and whole upper plumage olive-brown, each feather margined with brown ; middle tail-feathers olive-brown, the others black suffused with olive-yellow on the outer webs and tipped with white; wing-coverts olive-brown ; primary-coverts dark brown; visible winglet ashy-yellow ; primaries brown with the outer W6bs grey; outer secondaries with an increasing amount of yellow; inner secondaries olive-brown tinged with yellow and tipped with white; cheeks, chin and throat like the back, but darker and with a few white tips to the feathers of the face; under plumage olive-brown, tinged with fulvous on the abdomen and all the feathers margined with black, except on under tail-coverts and thighs.
Colours of soft parts. Bill dusky; legs reddish brown; iris red-brown (Jerdon); iris yellowish grey (Blanf.).
Measurements. Length about 230 mm.; wing 90 to 95 mm.; tail about 100 to 105 mm.; tarsus about 35 mm.; culmen about 18 mm.
Distribution. Nepal, Sikkim, Bhutan and hills North of the Brahmaputra as far as the Dibang.
Nidification. According to Hodgson this Laughing-Thrush breeds in Nepal in the months of April, May and June, making a cup-shaped nest of grass and moss lined with bamboo leaves, which it builds in bushes and trees, close to the ground, in open forests and groves. It lays three or four spotless blue eggs which measure about 26.1 x 17.7 mm.
Habits. This is a bird of very high elevations, being found as high as 11,000 and not below 6,000 feet.