Falco virgatus Temminck, Pl. Col. (1823), 1, pl. 109.
Accipiter virgatus Sharpe, Cat. Birds Brit. Mus. (1874), 1, 150
(part); Hand-List (1899), 1, 253; Everett, Ibis (1895), 38.
Accipiter gularis McGregor and Worcester, Hand-List (1906), 41
(part).
Palawan (Everett). Southern India, Ceylon, Andamans, and Greater
Sunda Islands.
"Adult male.--Above deep blackish slate-color, the nape slightly
mottled with white, the crown and wing-coverts a little darker;
quills dark brown, shaded with slate-color, without any bars above,
the under surface paler and more ashy, inclining to pale rufous near
the base of inner web, with blackish cross-bars; tail ashy gray above,
whitish ashy beneath, paler at tip, and crossed with three bars of
slaty black; ear-coverts and sides of neck slaty gray, the latter
washed with rufous; fore part of cheeks and throat buffy white, with
a few indistinct blackish shaft-lines here and there; rest of under
surface bright vinous-chestnut, much paler on the thighs; abdomen
and under tail-coverts white; under wing-coverts rich ocherous, the
lower ones and the axillars irregularly barred with brownish. Cere
yellow; bill black, lead-color at base; feet pale orange-yellow;
iris yellow. Length, 279; culmen, 19; wing, 168; tail, 129; tarsus, 48.
"Adult female.--A little larger than the male. Length, 330; wing,
188; tarsus, 56." (Sharpe.)