A large songbird with a notably long, heavy bill. Uniform olive-green above except for diagnostic striking yellow final third of tail. Head olive with a thin yellow line between the bill and the eye. Underparts uniform yellow. Small groups inhabit forests, edges, and plantations, occurring from sea level to the foothills. Confined to the islands of Seram and Ambon. No other species in range shows a bold bicolored tail. Song consists of strident high-pitched whistles, descending on the final notes: “WEE-WEE-WEE-WEE-WOO-WOO.” Also gives soft chattering calls and raspy notes.