Falco bacha Daudin, Traité (1800), 2, 43.
Spilornis bacha Sharpe, Cat. Birds Brit. Mus. (1874), 1, 290;
Hand-List (1899), 1, 299; McGregor and Worcester, Hand-List
(1906), 42.
Balabac (Everett); Calamianes (Bourns & Worcester); Palawan
(Whitehead, Platen, Steere Exp., Bourns & Worcester,
Everett). Malayan Peninsula, Greater Sunda Islands.
"Adult male.--Head largely crested, jet black with white bases to
the feathers; upper surface of body brown, the wing-coverts with
a few minute spots of white on the margins of the feathers; quills
black, primary-coverts and secondaries narrowly tipped with white,
the primaries somewhat shaded with ashy gray externally and crossed
with two brown bands, one broad and very distinct, the other basal and
nearly obsolete, these bars less distinct above on the secondaries,
but rather plainer below; upper tail-coverts and tail blackish brown,
slightly tipped with whitish, the latter crossed with a broad median
band of pale ashy brown, with indications of a second basal one only
visible below; sides of head and throat blackish, cheeks somewhat
shaded with ashy gray; remainder of under surface of body brown, the
chest uniform, the breast with distinct oval spots of white on both
webs, more numerous on thighs and inclining to bars on flanks and
under tail-coverts; under wing-coverts paler brown, thickly varied
with oval spots of white, larger and further apart on the axillars
and greater coverts. Cere yellow, bill black, horn-colored at tip;
feet orange-yellow; iris yellow. Length, 622; culmen, 48; wing, 406;
tail, 254; tarsus, 86.
"Adult female.--Similar to the male but larger. Length, 660; wing,
419; tail, 267; tarsus, 95." (Sharpe.)