Sunda bush warbler (Cettia vulcania)
Wikipedia eBird Xeno-Canto
Wikipedia: Sunda bush warbler Source: OTHER 1200px-Aberrant_Bush_Warbler_0A2A4060.jpg
Classification: Genus Cettia; Subfamily Acrocephalinae; Family Old world warblers (Sylviidae)
🔍 No documented observation