636. Hydrocichla ruficapilla.
The Chestnut-backed Forktail.
Enicurus ruficapillus, Temm. Pl. Col. iii, pl. 534 (1832); Blyth, Cat, p. 159. Henicurus ruficapillus, Temm., Elwes, Ibis, 1872, p. 257; Hume & Dav. S. F. vi, p. 361; Hume, Cat. no. 588 bis. Hydrocichla ruficapilla ((Temm.), Sharpe, Cat. B. M. vii, p. 319; Oates, B. B. i, p. 28.
Coloration. Male. Forehead white; a frontal band, the lores, cheeks, ear-coverts, chin, and throat black; the forehead, crown, nape, upper part of back, and the sides of the neck chestnut; back, lesser and median coverts, primary-coverts, and winglet black; greater coverts and scapulars black, tipped with white; primaries black ; secondaries and tertiaries black, with broad white bases and narrower tips; rump, upper tail-coverts, and the lower plumage white ; the feathers of the breast and the upper part of the abdomen margined with black ; the two outer pairs of tail-feathers white; the others black, with broad white bases and tips.
Female. Resembles the male, except that the whole of the back is chestnut, tinged with olivaceous on the lower portion.
The young bird is probably spotted in its first stage of plumage.
Legs, feet, and claws pale pinky- or fleshy-white; bill black ; iris dark brown (Hume & Davison).
Length about 8; tail 3.3; wing 3.7; tarsus 1.15; bill from gape 1.1.
Distribution. Tenasserim, from Nwalabo mountain southwards. This species extends down the Malay peninsula and is found in Borneo.