747. Pyrrhula erithacus.
Beavan's Bull finch.
Pyrrhula erythaca, Blyth, Ibis, 1862, p. 389 ; Jerd. B. I. ii, p. 389 ; Hume, S. F. ii, p. 455; id. Cat. no. 730. Pyrrhula erithacus, Blyth, Ibis, 1863, p.. 441, pl. 10; Sharpe, Cat. B. M. xii, p. 455.
Coloration. Male. A broad black band round the base of the bill, edged posteriorly with greyish white shading off into the dark ashy grey of the crown, nape, back, and scapulars, and the paler ashy grey of the sides of the head and throat; a broad black band across the rump followed by a broader white band; upper tail-coverts and tail deep glossy black ; lesser and median coverts ashy grey with dark centres; greater coverts with basal half black and terminal half ashy grey ; quills black, the outer webs becoming more glossy inwardly and the tertiaries being entirely glossy black; breast, upper half of abdomen and of the sides of the body orange; remainder of lower plumage greyish white; under wing-coverts and axillaries greyish white.
Female. Differs from the male by having all the underparts, with the exception of the white abdomen, of a light chocolate-colour, and the back darker.
Iris dark brown ; culmen black; tarsus body-colour (Prje-valsky).
Length about 6; tail 2.9; wing 3.3: tarsus .65; bill from gape .45.
Distribution. Sikhim, extending to Kansu and Western China.