A medium-sized yellowish-olive bird with a long tail that is often flipped up and down. Endemic to the remote island of Rodrigues. Found in secondary forest, scrub, and plantations. Feeds both in the undergrowth and up into the canopy. The cheerful song is a quick series of several musical warbling notes in an up-and-down pattern. The calls include “chek” notes and rattling scolds. There are no other warblers or otherwise similar species on Rodrigues, so identification is simple.