Apalopteron familiare
The Bonin White-eye, *Apalopteron familiare*, is a striking passerine endemic to Japan's Ogasawara Islands. Measuring approximately 13-14 cm in length and weighing around 15-18 grams, it boasts a distinctive appearance: a bright olive-green back and wings, a contrasting deep yellow to orange throat and upper breast, fading to a paler yellow on the belly. Its most prominent field mark is a bold, black mask extending from the bill to behind the eye, sharply bordered by a faint white eye-ring—le...
This species primarily inhabits subtropical moist broadleaf forests, particularly evergreen forests and secondary growth, often thriving in areas near coastal zones from sea level to moderate elevations. It shows adaptability to disturbed forest patches and gardens within its limited island range.
Omnivorous, feeding primarily on nectar, insects (such as caterpillars, beetles, and spiders), and small fruits. They utilize their brush-tipped tongues for nectar extraction and their pointed bills for gleaning insects and consuming soft fruits.
Bonin White-eyes are diurnal, actively foraging throughout the day, often in pairs or small, loose groups that may form larger flocks outside the breeding season. Their foraging strategy is agile and acrobatic; they glean insects from foliage, probe flowers for nectar with their brush-tipped tong...
The Bonin White-eye is strictly endemic to a small group of remote volcanic islands known as the Ogasawara Islands (Bonin Islands) in the western Pacific Ocean, approximately 1,000 km south of Tokyo, Japan. Its primary breeding and resident range includes the main islands of Chichi-jima, Hahajima...
Near Threatened
- Despite its common name, the Bonin White-eye's eye-ring is less prominent than in many other white-eye species, often appearing as a thin, broken white line around a bold black mask. - It is a monotypic genus (*Apalopteron*), meaning it is the sole species within its genus, highlighting its uni...