The Japanese White-eye, Zosterops japonicus, is native to much of eastern Asia including the Philippines and Japan. It has also been introduced to Hawaii. It was brought in as a pest control but has actually helped spread non-native plants.
It is a very small attractive songbird.
Classification:
Order: Passeriformes
Family: Zosteropidae
Genus: Zosterops
Species: Z. japonicus
Photos:
Japanese White-eye Closeup

"Photo was taken on March 22, 2007 at 9:42am in Wailea, Maui, Hawaii Canon 1D Mark II N camera; Canon 400mm F/4 DO IS lens + Tamron 1.4x TC @ F/4, 1/250 second, ISO 400"
Photo courtesy of janruss
Japanese White-Eye

"A better photo, also called Mejiro."
Photo courtesy of hearman