Реюньонская белоглазка Zosterops olivaceus

An unusual white-eye with dark plumage and a long, curved bill. Olive-green above and gray below with a broad white eye-ring. Found on the island of Reunion in humid forest, mostly at middle and high elevations. Vaguely similar to Reunion Gray White-eye, but easily separated by the white eye-ring and the olive-green back. Gives a warbling song and a variety of calls including a short, accelerating series of chipping notes.