The Himalayan Black Bulbul breeds throughout the outer and lower ranges of the Himalayas, at any rate from Bhootan to Afghanistan, at elevations varying from 2000 to 6000 feet.
They lay mostly in May and June, but eggs may occasionally be met with during the latter half of April.
The nest of Hypsipetes psaroides is usually made of rather coarse-bladed grass, with exteriorly a number of dry leaves, and more or less moss incorporated, and lined with very fine grass-stems and roots of moss. A good deal of spider's web is often used exteriorly to bind the nest together, or attach it more firmly to the fork in which it rests. Its general shape is a moderately deep cup, the cavity measuring some 2½ inches in diameter by 1½ inch in depth. The sides, into which leaves and moss are freely interwoven, vary from an inch to a couple of inches in thickness. The bottom, loosely put together, is rarely more than from a quarter to half an inch in depth. It appears to be generally placed on the fork of a branch, at a moderate height from the ground.
Four is the normal number of eggs, but I have more than once found three partially incubated eggs in a nest.
From Darjeeling Mr. Gammie remarks:—"A nest of this bird, which I took on the 17th June, at a height of nearly 50 feet from the ground, on one of the topmost branches of a tree, contained three hard-set eggs. This was below Rungbee, at an elevation of about 3000 feet. The nest was a compact, moderately deep cup, composed of very fine twigs and stems, and with a quantity of dead leaves incorporated in the structure, especially towards its lower surface; it had no lining, but the stems used towards the interior of the nest were somewhat finer than the rest. Exteriorly the nest had a diameter of about 4·5 inches, and a height of about 2·5; interiorly a diameter of about 2·5, and a depth of nearly 1·5."
Mr. Hodgson, writing from Nepal, says:—
"May 20th, Jaha Powah.—Two nests on the skirts of the forest in medium-sized trees, placed on the fork of a branch. They are made of moss and dry fern and dry elastic twig-tops, and lined with long elastic needles of Pinus longifolia. They are compact and rather deep, half pensile, that is to say, partly slung between the branches of the fork to which they are attached by bands of vegetable fibres. Each contained four eggs, pinkish-white, thickly spotted with dark sanguine." Another year he wrote:—
"May 9th, in the Valley.—A mature female with nest and eggs. Nest saucer-shaped, the cavity 3·5 wide by 2·5 deep, made of slender twigs and grass-fibres, with no lining. Eggs three, pale pink, blotched all over with sanguine brown."
Writing from Almorah, Mr. Brooks tells us that "the nest and eggs were found by Mr. Horne on the 27th May near Bheem Tal."
Colonel G.F.L. Marshall also found a nest in the same place. He says:—"I have only myself found the nest once at Bheem Tal (4000 feet); it was situated in a thicket. The nest of this species is similar in shape but much more substantial than those of the Common Bulbul. The eggs are much larger and more elongated in shape, but the colouring is similar to those of the Bulbul, and in many cases the blotches have a tendency to form a zone near the thick end. The nest I found was taken on the 10th June and contained fresh eggs.