Iole siquijorensis Steere, List Birds and Mams. Steere
Exped. (1890), 19; Sharpe, Hand-List (1901), 3, 314; McGregor
and Worcester, Hand-List (1906), 79.
Tig-ba-ya, Siquijor.
Siquijor (Steere Exp., Bourns & Worcester, Celestino).
Adult.--Forehead and entire top of head seal-brown; rest of upper
parts, wings, and tail lighter brown, the feathers edged with dark
olivaceous; tips of greater and median wing-coverts whitish, or light
brown, forming two wing-bars; sides of head and neck light brown;
chin, throat, and breast brown with a slight olivaceous wash, the
feathers with white shaft-streaks, the streaks on chin and throat
very wide; middle of lower breast, abdomen, under tail-coverts,
axillars, and wing-lining white, faintly washed with pale yellow;
sides, flanks, and thighs light drab-brown. A male measures: Wing,
133; tail, 121; culmen from base, 32; bill from nostril, 21; tarsus,
23. A female measures: Wing, 122; tail, 111; culmen from base, 31;
bill from nostril, 20; tarsus, 23.
This distinct species may be recognized by its entirely seal-brown
head.
"The Siquijor bulbul is found about low bushes in open fields,
often in flocks. Twelve males average: Length, 279; wing, 132; tail,
118; culmen, 31; tarsus, 22; middle toe with claw, 25. Four females,
wing, 121; tail, 109; culmen, 30; tarsus, 22; middle toe with claw,
23. Iris chocolate-brown; legs, feet, and nails brown, bottoms of feet
yellowish; upper mandible black, lower black to dark brown." (Bourns
and Worcester MS.)