Southern Marquesan Reed Warbler Acrocephalus mendanae

A medium-sized reed warbler, bright yellow below and tawny above, with pale-edged black wing feathers. Bill long and slightly downcurved, giving the bird a very “long-headed” appearance. Found in scrubby areas and plantations, avoiding deep primary forest. Call is a harsh “tchak.” Song is a mix of whistles, churring, warbling, and rasping scold notes.