662. Thamnobia fulicata.
The Black-backed Indian Robin.
Motacilla fulicata, Linn. Syst. Nat. i, p. 336 (1766). Thamnobia fulicata (Linn.), Blyth, Cat. p. 165; Horsf. & M. Cat. i. p. 281; Jerd. B. I. ii, p. 121; Hume, N. & E. p. 307 ; id. Cat. no. 479; Legge, Birds Ceyl. p. 440 ; Sharpe, Cat. B. M. vii, p. 54; Davison, S. F, x, p. 388; Barnes, Birds Bom. p. 198; Oates in Hume's N. & E. 2nd ed. ii, p. 76.
The Indian Black Robin, Jerd.; Kalchuri, Hind.; Nalanchi, Tel.; Wannati-kuravi, Tam.
Coloration. Male. When freshly moulted in September, the whole plumage is glossy black except the lesser wing-coverts and a portion of the median, which are white, and the under tail- coverts and a portion of the lower part of the abdomen, which are chestnut; wings brown or dull black. This plumage is retained till February, when the coloration becomes paler either by bleaching or abrasion of the feathers, and in this state the birds resemble T. cambaiensis, but there is always some black left to indicate the species.
Female. Lores, forehead, and chin rufous-ashy; ear-coverts rufous, with pale shafts; the whole upper plumage brown with a rufous tinge, the wing-coverts edged paler; quills brown, edged with the colour of the back ; lower plumage ashy grey, varying in different individuals ; middle of the lower abdomen and the under tail-coverts chestnut.
The young are rufous-brown above, obsoletely barred or tipped brighter; wing-coverts and quills broadly edged with rufous; upper tail-coverts dusky; tail blackish : lower plumage brown mottled with rufous, the chin paler; middle of the abdomen and the under tail-coverts pale chestnut.
The young of this species are more distinctly spotted than are those of T. cambaiensis.
Iris dark brown; legs, feet, and bill black (Butler).
Length about 6.5; tail 2.5; wing 2.9; tarsus 1.05; bill from gape .75.
Distribution. Ceylon ; the southern portion of India up to Ahmednagar on the west and the Godavari valley on the east.
Habits, &c. Precisely those of the last species in all respects. Eggs of the same type and size.