Scops sibutuensis Sharpe, Bull. Brit. Orn. Club (1893), 2, 9;
Ibis (1894), 244; Hand-List (1899), 1, 287.
Otus sibutuensis McGregor and Worcester, Hand-List (1906), 46.
Sibutu (Everett).
Diagnosis.--Similar to Otus mantananensis but upper side of wings
scarcely spotted with white and quills but faintly banded below. "Bill
blackish brown; feet brown; iris yellow." (Everett.) Length, 203;
wing, 152. [29]
Everett collected an adult male and female and a young bird in
Sibutu. Sharpe makes the following observations: "This race is
intermediate between S. menadensis [from Celebes] and S. mantananensis
[from Mantanani Island, Borneo] which I described last year; the white
wing markings, however, are altogether smaller and not so distinct,
the under surface of the quills being almost devoid of markings. From
S. menadensis the Sibutu bird differs in having all the markings of
the upper surface very fine and not all over as in that species. The
quills have also more bars in the Celebean bird than in the species
from Sibutu."