Iole cinereiceps Bourns and Worcester, Minnesota
Acad. Nat. Sci. Occ. Papers (1894), 1, 25; Sharpe, Hand-List
(1901), 3, 314; McGregor and Worcester, Hand-List (1906), 79.
Romblon (Bourns & Worcester, McGregor); Tablas (Bourns & Worcester,
Celestino).
Adult.--Entire top of head slate-gray, bases of the feathers
olive-brown, the shafts nearly black; chin and throat white, streaked
with pale yellow; otherwise very similar to Iole siquijorensis. A
male measures: Wing, 126; tail, 115; culmen from base, 32; bill from
nostril, 21; tarsus, 22. A female, wing, 122; tail, 111; culmen from
base, 30; bill from nostril, 19; tarsus, 24.
"The ashy-headed bulbul occurs in the open, but is far more abundant
in the woods. Eleven males from Romblon measure: Length, 288;
wing, 131; tail, 115; culmen, 35; tarsus, 22; middle toe with claw,
26. Four females from the same locality, length, 274; wing, 122;
tail, 109; culmen, 33; tarsus, 22; middle toe with claw, 25. Males
and females from Tablas average slightly less in length, but are
otherwise identical with Romblon birds. Iris, legs, feet, and nails
very dark brown; bill black." (Bourns and Worcester MS.)