| Specie | Subspecies | Voice |
|---|---|---|
| Kioea (Chaetoptila † angustipluma) | monotypic | |
| Kauai Oo (Moho † braccatus) | monotypic | |
| Oahu Oo (Moho † apicalis) | monotypic | |
| Bishop's Oo (Moho † bishopi) | monotypic | |
| Hawaii Oo (Moho † nobilis) | monotypic |
Species: #5
Species and subspecies: #5
