Cu-sil-sil, Benguet; ti-tit, Calayan.

Banton (Celestino); Calayan (McGregor); Lubang (McGregor); Luzon (Meyen, Steere Exp., Möllendorff, Bourns & Worcester, Whitehead, McGregor, Bartsch); Verde (McGregor).

Male.—Above olive-yellow, brighter and yellower on forehead and tail-coverts; rectrices and wing-feathers brown and, except first alula feather and first primary, edged with olive-yellow on outer webs; primaries, secondaries, and rectrices edged with white on inner webs; a narrow ring around eye silky white, below this slightly dusky; lores olive-yellow; sides of head and neck like back; chin, throat, chest, and crissum light lemon-yellow; breast and abdomen white, very faintly drab-gray on sides and with a wash of yellow on median line; thighs, lining of wing, and axillars white faintly washed with yellow. A male from Manila measures: Length, 100; wing, 52; tail, 36; culmen from base, 12; bill from nostril, 7; tarsus, 16.

Female.—Similar to the male. A female from Nueva Ecija Province, Luzon, measures: Wing, 52; tail, 36; culmen from base, 12; bill from nostril, 7; tarsus, 16.

“Shot in great numbers in bamboo clumps in the open fields. Four males average as follow: Wing, 53; tail, 37; culmen, 14; tarsus, 15; middle toe with claw, 13.7. Three females, wing, 51; tail, 37; culmen, 13; tarsus, 14.7; middle toe with claw, 14.4. Iris light brown; legs, feet, and nails leaden.” (Bourns and Worcester MS.)

607. ZOSTEROPS WHITEHEADI Hartert.
WHITEHEAD’S SILVEREYE.

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 ♂ ♀, 52 to 53.5; tail, 36; bill, 9.” (Hartert.)