564. Cyornis cyaneus.
The White-tailed Blue Flycatcher.
Muscitrea cyanea, Hume, S. F. v, p. 101 (1877) ; Hume & Dav. S. F. vi, p. 207; Hume, Cat. no. 266 bis. Trichastoma leucoproctum, Tweedd. P. Z. S. 1877, p. 366: Hume, S. F. vii, p. 318. Niltava leucoprocta (Tweedd.), Oates, B. B. i, p. 298. Pachycephala cyanea (Hume), Gadow, B. M. Cat. viii, p. 224.
Coloration. Male. Lores and front line of the forehead black; forehead, crown, nape, and some of the lesser coverts cobalt-blue; the remaining wing-coverts and the whole upper plumage deep blue ; quills dark brown, edged with blue ; the four middle tail-feathers dull blue, the next pair white on both webs, with a broad black tip, the next two pairs nearly entirely white on the inner web, the outermost pair narrowly white on the inner web; sides of the head and neck, chin, throat, and breast dull blue; abdomen and sides of the body bluish grey; vent and under tail-coverts pure white; under wing-coverts ashy. The disposition of white in the tail varies somewhat.
Female. Lores and front line of the forehead reddish brown; upper plumage olive-brown, tinged with rufous; wing-coverts and quills dark brown, broadly edged with bright rufous; tail brown, tinged with rufous and with the same distribution of white on it as in the male; ear-coverts olive-brown, with pale shafts; chin, throat, breast, and sides of the body rufous-olive; a large patch of white on the fore neck; middle of the abdomen whitish; vent and under tail-coverts pure white; under wing-coverts and axillaries rufous-ashy.
Bill black; legs light brown; iris deep brown (Limborg).
Length about 7 ; tail 3; wing 3.6 ; tarsus .9 ; bill from gape 1.
Distribution. Muleyit mountain in Tenasserim up to 5000 feet. This species has also been found on the mountains of Perak in the Malay peninsula.
Habits, A forest bird, found constantly on trees, and never descending to the ground.