Tahiti Reed-warbler

The Tahiti Reed-warbler, <em>Acrocephalus caffer</em>, is a member of the family Acrocephalidae and is endemic to Tahiti and nearby islands in French Polynesia. It inhabits forest environments on its native islands, where it is thought to forage for invertebrates among vegetation. The species is classified as Vulnerable, reflecting ongoing threats from habitat loss, introduced predators such as rats and cats, and the restricted nature of its island range. Detailed plumage and behavioral descriptions of this species are limited in the available literature, though Pacific island reed-warblers are generally known to be highly sedentary and adapted to a variety of vegetation types. Nesting involves a cup-type nest, though clutch size data are not available in current records. Diet likely includes invertebrates and possibly small fruits or lizards, as reported for some related island warblers. Song and call characteristics have not been described in available sources. The Tahiti Reed-warbler’s Vulnerable designation highlights the need for continued monitoring and invasive species management efforts to prevent further population decline on its native islands.