371. Tribura thoracica (Blyth). _The Spotted Bush-Warbler_.

Dumeticola affinis (_Hodgs.), Jerd. B. Ind._ ii, p. 158.

Dumeticola brunneipectus, _Bl., Hume, Rough Draft N. & E._

no. 519 bis.

Mr. Hodgson gives a very careful figure of a female bird of this

species, together with its nest and egg, but he labels it underneath

_affinis_. As we know, he described _affinis_ as having spots on the

breast; but he further notes that at the same place at which he obtained

the female, nest, and eggs, he also got a male bird with spots on the

breast; in fact, in other words, he seems to have come to the conclusion

that _Dumeticola affinis_ was the male and that _Dumeticola

brunneipectus_, which he did not separately name, though he has

beautifully figured it, was the female. I have specimens of both, but

the sexes were not ascertained; still I doubt whether the two birds can

possibly be merely different sexes of the same species. Anyhow, the

female bird which he figures (No. 826) is really _brunneipectus_, and

under that name I notice the nest and eggs on which the female figured

was captured. Mr. Hodgson notes:--"_Gosainthan_. In the snows; female

and nest.

"_August 2nd_.--Nest in a bunch of reeds placed slantingly: ovate

in shape; aperture at one side; placed about half a foot above

the ground, made of grasses and moss, 4 or 5 inches in diameter

exteriorly, interiorly between 2 and 3 inches." The eggs are figured

as moderately broad ovals, measuring 0·65 by 0·48, of a uniform deep

cinnabar-red, reminding one of the eggs of _Prinia socialis_, but much

deeper in colour[A].

[Footnote A: There can be no doubt, I think, that _T. affinis_ and _T.

brunneipectus_ are the same species as _T. thoracica_. I reproduce Mr.

Hodgson's note on the nesting of this species together with Mr. Hume's

remarks, but I feel sure that the nest described by Mr. Hodgson and

the egg figured by him cannot belong to the present species.--ED.]

Mr. Mandelli sends me three nests of this species, all found near

Yendong, in Native Sikhim, at an elevation of about 9000 feet, on the

15th, 17th, and 21st July. The nests contained two, two, and three

fresh eggs respectively, and were placed, two of them in small

brushwood, and one in a clump of rush or grass, from 9 to 18 inches

above the ground. They seem to have all been rather massive little

cups, composed exteriorly of broad grass-blades rather clumsily wound

together, and lined with rather finer, but by no means fine grass.

In two of them some dead leaves have been incorporated in the basal

portion.

They are rather dirty, shabby-looking nests, obviously made of dead

materials, old withered and partially-decayed grass, and not with

fresh grass; they seem to have measured 3 inches in diameter, and 2·5

in height externally; the cavity was perhaps 1·5 to 1·75 in diameter,

and 1 inch more or less in depth.

From Sikhim Mr. Gammie writes:--"Nest among scrub in small bush, 2

feet from ground, at 5000 feet above the sea. Found on the 3rd June,

when it contained two eggs; taken on the 5th, with four eggs. I

dissected the bird killed off the nest, and found it to be a female;

in her stomach were the remains of a few insects. The nest is

cup-shaped, loosely made of dry leaves and grass, lined with, for the

size of the bird, coarse grass-stalks. Externally it measures 3·5

inches in breadth by 2·5 deep; internally 2 broad by 1·5 deep."

This nest taken by Mr. Gammie near Rungbee on the 5th June, 1875, at

an elevation of about 5000 feet, contained four eggs. It was a massive

little cup about 3 inches in diameter externally, and with an internal

cavity about 2 inches in diameter and 1¾ inch deep; was rather loosely

put together, externally composed of dead leaves and broad flags of

grass, internally lined with grass-stems.

The eggs of this species are very regular broad ovals, the shells fine

but glossless, the ground-colour a dead white, thickly speckled and

spotted about the large end, thinly elsewhere, with somewhat brownish

and again purplish red. The markings are all very fine and small, but

where they are closely set at the large end there a few little pale

purplish-grey specks and spots are intermingled.

The eggs measure 0·68 by 0·55.

The eggs of this species obtained by Mr. Mandelli in the neighbourhood

of Darjeeling in July are so similar to those obtained by Mr. Gammie,

and of which he sent me the parent bird, that no second description is

necessary. They are a shade smaller, but the difference is not more

than is always observable in even the same species. They measure 0·67

in length, and 0·53 to 0·55 in breadth.

The Nests and Eggs of Indian Birds, Volume 1 · 第 172 / 260 题