943. Serilophus rubripygius.
Raya rubropygia, Hodgs. J. A. S. B. viii, p. 36 (1839) Serilophus rubropygius, Bp. Consp. i, p. 169; Blyth, J. A. S. B. xv, p. 311; id. Cat. p. 1960; id. Birds Burm. p. 125 ; Horsf. & M. Cat. i, p. 119 ; Jerd. B. I. i, p. 238 ; Godw.-Aust. J. A. S. B. xxxix, pt. 2, p. 95 ; xlv, pt. 2, p. 69; Hume, Cat. no. 139; id. S. F. ix, p. 247 ; xi, p. 49 ; Oates, B. B. i, p. 425; Sclater, Cat. B. M. xiv, p. 461; Hartert, J. f. Orn. 1889, p. 395; Oates in Hume's N. & E. 2nd ed. ii, p. 293.
The Red-backed Broadbill, Jerdon ; Ra-i-suga, Nepal ; Rab-kyul, Lepcha.
Tips of outer primaries rounded.
Coloration. Male. Head above, nape, and upper back dark ashy grey; along black supercilium to the nape; back browner, passing into the ferruginous-red tertiaries, rump, and upper tail-coverts. Wings black, outer webs of almost all feathers dull blue near the base, corresponding to a white spot on the inner web; extreme tips of first 5 primaries white, of the remaining primaries chestnut, bordered inside with bluish grey; most of the wing-feathers except the first five with a small white spot on the outer web near the tip. Tail black, the three outer pairs of feathers with broad white tips. Lower parts ashy grey, under wing-coverts and thighs black; edge of wing whitish.
Female with pure white tips to some of the neck-feathers, forming a narrow collar at each side but interrupted in the middle.
Bill blue, paler towards the tip, a green spot, in the male only, in the middle of the lower mandible; iris greyish brown, naked skin round the eye dark yellow, narrow ring of the eyelid green; feet yellowish green, whitish-blue spots on the toes, nails whitish blue (Hartert); iris brown speckled with gold (Hume).
Length 7.25 ; tail 2.8 ; wing 3.3 ; tarsus .85 ; bill from gape .9.
Distribution. Eastern Himalayas, below about 5000 feet, as far west as Nepal; Assam and the hills to the southward as far as Arrakan and Manipur.
Habits, &c. Very similar to those of S. lunatus, but this bird is less tame. It feeds on insects, and Hume shot one in Manipur that had eaten small land mollusca. The nest and eggs, which
Bill similar to that of Eurylaemus, but smaller, edge of upper mandible straight, not overhanging ; no rictal bristles; loreal feathers directed forward. Tarsi indistinctly scutellated in front outside, the scutellation becoming obsolete inside. Tail greatly graduated, longer than the wing. General colour bright green. Sexes alike. A single species.