Zosterops whiteheadi Hartert, Bull. Brit. Orn. Club (1903), 14,
13; McGregor and Worcester, Hand-List (1906), 95.
Luzon (Whitehead, Worcester, McGregor, Mearns, Bartsch).
Diagnosis.--Similar to Zosterops meyeni from the vicinity of Manila,
but male and female "differ conspicuously in being darker above
and not so yellow, especially on the crown and forehead, in having
darker and more greenish olive ear-coverts, all the feathers of the
upper side having much darker gray bases, more greenish flanks, and
a black loral patch which is not developed in Z. meyeni. Wing [male]
[female], 52 to 53.5; tail, 36; bill, 9." (Hartert.)