Parent: Acrocephalidae

└─ Iduna

└─── Iduna aedon (Thick-billed warbler)

└─── Iduna caligata (Booted warbler)

└─── Iduna natalensis (Dark-capped yellow warbler)

└─── Iduna opaca

└─── Iduna pallida (Eastern olivaceous warbler)

└─── Iduna rama (Sykes's warbler)

└─── Iduna similis (Mountain yellow warbler)