Data Zone
| Scientific name | English name | Family | Global IUCN Red List Category |
|---|---|---|---|
| Anas laysanensis | Laysan Duck | Anatidae (Ducks, Geese, Swans) | CR |
| Puffinus bryani | Bryan's Shearwater | Procellariidae (Petrels, Shearwaters) | CR |
| Puffinus newelli | Newell's Shearwater | Procellariidae (Petrels, Shearwaters) | CR |
| Numenius borealis | Eskimo Curlew | Scolopacidae (Sandpipers, Snipes, Phalaropes) | CR (PE) |
| Gymnogyps californianus | California Condor | Cathartidae (New World vultures) | CR |
| Campephilus principalis | Ivory-billed Woodpecker | Picidae (Woodpeckers) | CR |
| Acrocephalus familiaris | Millerbird | Acrocephalidae (Reed-warblers) | CR |
| Myadestes lanaiensis | Olomao | Turdidae (Thrushes) | CR (PE) |
| Myadestes palmeri | Puaiohi | Turdidae (Thrushes) | CR |
| Paroreomyza maculata | Oahu Alauahio | Fringillidae (Finches) | CR (PE) |
| Oreomystis bairdi | Akikiki | Fringillidae (Finches) | CR |
| Telespiza ultima | Nihoa Finch | Fringillidae (Finches) | CR |
| Loxioides bailleui | Palila | Fringillidae (Finches) | CR |
| Psittirostra psittacea | Ou | Fringillidae (Finches) | CR (PE) |
| Hemignathus hanapepe | Kauai Nukupuu | Fringillidae (Finches) | CR (PE) |
| Hemignathus affinis | Maui Nukupuu | Fringillidae (Finches) | CR (PE) |
| Pseudonestor xanthophrys | Maui Parrotbill | Fringillidae (Finches) | CR |
| Loxops caeruleirostris | Akekee | Fringillidae (Finches) | CR |
| Loxops ochraceus | Maui Akepa | Fringillidae (Finches) | CR (PE) |
| Palmeria dolei | Akohekohe | Fringillidae (Finches) | CR |
| Vermivora bachmanii | Bachman's Warbler | Parulidae (New World warblers) | CR (PE) |
