Rimatara Reed Warbler Acrocephalus rimitarae

A large warbler with a yellowish eyebrow and a dark eye-stripe. Crown and upperparts warm olive-brown. Body and tail messily interspersed with white, giving a variably patchy white-and-brown appearance. Found in brushy forest and reed beds. Most common vocalizations reported to be loud scolding “chack-chack” calls and chirping.