Oriolus steerii Sharpe, Cat. Birds Brit. Mus. October or earlier
(1877), 3, 213, pl. 10 (description of adult from Negros); Grant,
Ibis (1896), 532 (Negros; key to Philippine species of Oriolus);
Clarke, Ibis (1898), 119; Whitehead, Ibis (1899), 101 (habits).
Oriolus nigrostriatus Bourns and Worcester, Minnesota
Acad. Nat. Sci. Occ. Papers (1894), 1, 16 (Negros and Masbate);
Proc. U. S. Nat. Mus. (1898), 20, 558, no. 305; McGregor and
Worcester, Hand-List (1906), 107.
Masbate (Steere Exp., Bourns & Worcester); Negros (Steere, Keay,
Whitehead, Celestino).
Male.--Above olive-yellow; slightly darker on head, and brighter,
more golden, on rump and tail-coverts; chin, throat, and chest dark
ashy gray; lower breast and abdomen whitish, each feather with a
broad median black streak; thighs black, mottled with white; under
tail-coverts bright lemon-yellow with dusky shaft-lines; primaries,
outer secondaries, primary-coverts, and alula-feathers blackish,
edged with ashy gray; inner webs of primaries edged with white;
secondary-coverts and inner secondaries edged with dark olive-yellow;
rectrices blackish, the outermost pair each with a large yellow spot
(about 18 mm. in length) at tip of inner web, the spot gradually
decreasing in size on each succeeding feather. A male from northern
Negros measures: Wing, 122; tail, 86; culmen from base, 24; tarsus, 21.
Female.--The female resembles the male in colors, but is slightly
smaller and has a smaller yellow spot on the outermost rectrix. A
female from northern Negros measures: Wing, 111; tail, 78; culmen
from base, 23.5; tarsus, 21.
Steere's oriole differs from the Basilan oriole in having the inner
webs of the primaries white and the yellow spots on the rectrices
much larger.