88. Trochalopterum subunicolor, Hodgs. The Plain-coloured Laughing-Thrush.
Trochalopteron subunicolor, Hodgs., Jerd. B. Ind. ii, p. 44; Hume,
Rough Draft N. & E. no. 417.
The Olivaceous or Plain-coloured Laughing-Thrush breeds, according to Mr. Hodgson's notes, in the central region of Nepal from April to June. It nests in open forests and groves, building its nest on some low branch of a tree, 2 or 3 feet from the ground, between a number of twigs. The nest is large and cup-shaped: one measured externally 5·5 inches in diameter and 3·38 in height; internally 2·75 deep and 3·12 in diameter. The nest is composed externally of grass and mosses lined with soft bamboo-leaves. Three or four eggs are laid, unspotted greenish blue. One is figured as 1·07 by 0·7.
90. Trochalopterum variegatum (Vig.). The Eastern Variegated Laughing-Thrush.
Trochalopteron variegatum (Vig.), Jerd. B. Ind. ii, p. 45; Hume,
Rough Draft N. & E. no. 418 (part).
The Eastern Variegated Laughing-Thrush breeds only at elevations of from 4000 to 7000 or 8000 feet, from Simla to Nepal, during the latter half of April, May, and June. The nest is a pretty compact, rather shallow cup, composed exteriorly of coarse grass, in which a few dead leaves are intermingled; it has no lining, but the interior is composed of rather finer and softer grass than the exterior, and a good number of dry needle-like fir-leaves are used towards the interior. It is from 5 to 8 inches in diameter exteriorly, and the cavity from 3 inches to 3·5 in diameter and about 2 inches deep. The nest is usually placed in some low, densely-foliaged branch of a tree, at say from 3 to 8 feet from the ground; but I recently obtained one placed in a thick tuft of grass, growing at the roots of a young Deodar, not above 6 inches from the ground. They lay four or five eggs.
The first egg that I obtained of this species, sent me by Sir E.C. Buck, C.S., and taken by himself near Narkunda, late in June, out of a nest containing two eggs and two young ones, was a nearly perfect, rather long oval, and precisely the same type of egg as those of T. erythrocephalum and T. cachinnans, but considerably smaller than the former. The ground-colour is a pale, rather dingy greenish blue, and it is blotched, spotted, and speckled, almost exclusively at the larger end, and even there not very thickly, with reddish brown. The egg appeared to have but little gloss. Other eggs subsequently obtained by myself were very similar, but slightly larger and rather more thickly and boldly blotched, the majority of the markings being still at the large end.
The colour of the markings varies a good deal: a liver-red is perhaps the most common, but yellowish brown, pale purple, purplish red, and brownish red also occur. Here and there an egg is met with almost entirely devoid of markings, with perhaps only one moderately large spot and a dozen specks, and these so deep a red as to be all but black.
The eggs vary from 1·07 to 1·15 in length, and from 0·76 to 0·82 in breadth.
91. Trochalopterum simile, Hume. The Western Variegated Laughing-Thrush.