(555) Callene frontalis.
The Blue-fronted Callene.
Cinclidium frontale Blyth, J. A. S. B., xi, p. 181 (1842) (Sikkim) Callene frontalis. Blanf. & Oates, ii, p. 113.
Vernacular names. None recorded.
Description.— Adult male. Lores and feathers round the eye black; lesser "wing-coverts, forehead and short eyebrow cobalt-blue; wing-quills and tail dark brown; remainder of plumage deep slaty blue, suffused with deep blue, fading to brown on the abdomen and posterior flanks and to whitish in the centre of abdomen and under tail-coverts ; the feathers of the breast have pale blue edges.
Colours of soft parts. Iris brown : bill black; legs dark brown.
Measurements. Total length about 200 mm.; wing 83 to 91 mm.; tail 75 to 80 mm.; tarsus 37 to 38 mm.: culmen 14 to 15 mm.
Female. Whole plumage rufous-brown; the feathers of the chin and throat with white centres and a few black tips ; a pale ring round the eye; centre of abdomen paler, vent and thigh-coverts almost or quite white.
Colours of soft parts. Iris brown ; bill black : legs brown.
Measurements. Wing 81 to 82 mm.; tail 78 mm.; culmen 13 mm.
Young male is like the female, but acquires the da,rk throat, lores and cheeks and the blue forehead at the first moult.
Nestling. Dark rufous-brown, striped above with fulvous and with large white spots on breast, flanks and abdomen.
Distribution. Sikkim only, apparently between 6,000 and 10,000 feet.
Nidification and Habits. A forest-bird, but beyond this nothing is known.