Zosterops batanis McGregor, Phil. Jour. Sci. (1907), 2, sec. A,
343.
Da-ti-ú, Batan.
Batan (McGregor).
Male (type).--Above yellowish green or light olive-yellow, brighter
on crown, rump, and upper tail-coverts; lores and frontal band
bright yellow; eye surrounded by a ring of silky white feathers,
interrupted in front by a small dusky spot; an indistinct dusky
line below eye-circle; auriculars and sides of neck light yellowish
green like the crown; chin, throat, breast, and under tail-coverts
bright yellow like the forehead; a faint yellow wash on middle of
breast and abdomen; wing-coverts olive-yellow like the back; quills
blackish and, except first primary, edged with olive-yellow, inner
webs margined with white; edge of wing light yellow; axillars and
wing-lining white, faintly washed with yellow; rectrices blackish
edged with olive-yellow. Iris light brown; upper mandible black;
lower mandible and legs leaden blue; nails brown. Length, 127; wing,
58; tail, 43; culmen from base, 14; bill from nostril, 8.5; tarsus,
18. Iris pale brown; upper mandible black; lower mandible and legs
lead-blue; nails brown.
Female.--Similar to the male. Wing, 55; tail, 40; culmen from base,
13; bill from nostril, 8; tarsus, 18.
A nest containing four fresh eggs of the Batan silvereye was taken on
June 1, 1907. The nest, compactly made of plant fibers, was situated in
the fork of a small tree; its inside diameter is 63 mm.; inside depth,
33. The eggs are pale blue and unmarked; they measure from 16.5 to
17.5 mm. in length, and from 12.1 to 12.9 mm. in breadth. Two nests
containing young birds were found on the 5th of June.