Sometimes they have two broods; whether this is always the case I do not know.
The nest is placed almost indifferently at any elevation. I have taken one from amongst the topmost twigs of a huge mohwa tree (Bassia latifolia) fully 60 feet high, and I have found them in a tiny bush not a foot off the soil. Still I think that perhaps the majority build at low elevations, say between 2 and 6 feet from the ground.
The nest is always a soft, delicate little cup, sometimes very shallow, sometimes very deep, as a rule suspended between two twigs like a miniature Oriole's nest, but on rare occasions propped in a fork. The nest varies much in size and in the materials with which it is composed.
Pine grass and roots, tow, and a variety of vegetable fibres, thread, floss silk, and cobwebs are all made use of to bind the little nest together and attach it to the twigs whence it depends. Grass again, moss, vegetable fibre, seed-down, silk, cotton, lichen, roots and the like are used in the body of the nest, which is lined with silky down, hair, moss, and fern-roots, or even silk, while at times tiny silvery cocoons or scraps of rich-coloured lichen are affixed as ornaments to the exterior.
One nest before me is a very perfect and deep cup, hung between two twigs of a mohwa tree and almost entirely hidden by the surrounding leaves. The exterior diameter of the nest is 2½ inches, and the depth 2 inches. The egg-cavity measures scarcely more than 1½ inch across and very nearly as much in depth. It is composed of very fine grass-stems and is thinly coated exteriorly with cobwebs, by which also it is firmly secured to the suspending twigs, and externally numerous small cocoons and sundry pieces of vegetable down are plastered on to the nest. Another nest, hung between two slender twigs of a mango tree, is a shallow cup some 2½ inches in diameter, and not above an inch in depth externally. The egg-cavity measures at most 1½ inch across by three-fourths of an inch in depth. The nest is composed of fine tow-like vegetable fibres and thread, by which it is attached to the twigs, a little grass-down being blended in the mass, and the cavity being very sparsely lined with very fine grass-stems. In another nest, somewhat larger than, the last described, the nest is made of moss slightly tacked together with cobwebs and lined with fine grass-fibres. Another nest, a very regular shallow cup, with an egg-cavity 2 inches in diameter and an inch in depth, is composed almost entirely of the soft silky down of the Calatropis gigantea, rather thickly lined with very fine hair-like grass, and very thinly-coated exteriorly with a little of this same grass, moss, and thread. Another, with a similar-sized cavity, but nearly three-fourths of an inch thick everywhere, is externally a mass of moss, moss-roots, and very fine lichen, and is lined entirely with very soft and brilliantly white satin-like vegetable down. Another, with about the same-sized cavity, but the walls of which are scarcely one-fourth of an inch in thickness, is composed entirely of this satiny down, thinly coated exteriorly and interiorly with excessively fine moss-roots (roots so fine that most of them are much thinner than human hair); a few black horsehairs, which look coarse and thick beside the other materials of the nest, are twisted round and round in the interior of the egg-cavity. Other nests might be made entirely of tow, so far as their appearance goes; and in fact with a very large series before me, no two seem, to be constructed of the same materials.
I have nests before me now, taken in September, March, June, and
August, all of which when found contained eggs.
Two is certainly the normal number of the eggs; about one fifth of the nests I have seen contained three, and once only I found four.
From Murree Colonel C.H.T. Marshall informs us that he took the eggs in June at an elevation of about 6000 feet.
Colonel G.F.L. Marshall says:—"I have taken eggs of this species at Cawnpore in the middle of June. I found six nests, five of which were in neem-trees. I also found the nest in Naini Tal at 7000 feet above the sea, with young in the middle of June; one only of all the nests I have seen was lined, and that was lined with feathers: they were, as a rule, about eight feet from the ground, but one was nearly forty feet up."
Capt. Hutton gives a very full account of the nidification of this species. He says:—"These beautiful little birds are exceedingly common at Mussoorie, at an elevation of about 5000 feet, during summer, but I never saw them much higher. They arrive from the plains about the middle of April, on the 17th of which month I saw a pair commence building in a thick bush of Hibiscus, and on the 27th of the same month the nest contained three small eggs hard-set. I subsequently took a second from a similar bush, and several from the drooping branches of oak-trees, to the twigs of which they were fastened. It is not placed on a branch, but is suspended between two thin twigs, to which it is fastened by floss silk torn from the cocoons of Bombyx Huttoni, Westw., and by a few slender fibres of the bark of trees or hair according to circumstances.