331. Dicrurus leucopygialis.
The White-vented Drongo.
Dicrurus leucopygialis, Blyth, J. A. S. B. xv, p. 298 (1846); id. Cat. p. 203; Oates in Humes N. &, E. 2nd ed. i, p. 209. Buchanga leucopygialis (Blyth), Holdsw. P. Z. S. 1872, p. 439; Sharpe, Cat. B. M. iii, p. 253; Hume, S. F. vii, p. 374; id. Cat. no. 281 bis; Legge, Birds Ceyl. p. 392, pl. 16. Buchanga insularis, Sharpe, Cat. B. M. iii, p. 253 ; Hume, S. F. vii, p. 374; id. Cat. no. 281 ter.
Kowda or Kawuda Panika, Ceyl.
Coloration. Upper plumage deep indigo; throat, breast, and abdomen dark brown, the lower part of the abdomen frequently-mixed with white; vent and under tail-coverts generally white, sometimes merely albescent; occasionally only the under tail-coverts are white.
Iris red; bill, legs, and feet blackish (flume Coll.). Of the same dimensions as D. caerulescens.
The amount of white on the lower plumage of this and D. caerulescens is variable, and occasionally a bird is met with which might, as regards this character, be assigned indifferently to one or the other species, but the colour of the throat and breast will, in these cases, be a safe guide to identification.
Distribution. Ceylon only.
Habits, &c. This species breeds from March to May, constructing its nest in a tree at a considerable height from the ground. The eggs, two to four in number, are whitish marked with red, and measure about .93 by .7.