1. Native Birds:
- Hawaiian nene goose (Branta sandvicensis): This endangered species is found in the high elevation shrublands of Mt Waialeale.
- Hawaiian crow (Corvus hawaiiensis): Also an endangered species, this large black bird is found in remnant native forests on the mountain.
- Apapane (Himatione sanguinea): A vibrant red-feathered bird often seen feeding on nectar from native flowers.
- Elepaio (Chasiempis sandwichensis): A small olive-green bird with a distinctive song, found in both native and disturbed forest habitats.
- Omao (Myadestes obscurus): A thrush-like bird with a beautiful song, often heard in wet forests.
2. Endemic Insects:
- Giant Kauai wetas (Deinacrida fallai): These large flightless insects are found in the understory of native forests and are endemic to the island of Kauai.
- Kauai cave wolf spider (Adelocosa anops): A blind spider that inhabits caves and lava tubes on the mountain.
- Kauai tachinid fly (Sisyropa littorea): A parasitic fly that lays its eggs on other insects, contributing to the ecological balance of the ecosystem.
3. Reptiles:
- Skink (Cryptoblepharus poecilopleurus): A small lizard that can be found in various habitats, including forests, lava fields, and shrublands.
- Hawaiian green sea turtle (Chelonia mydas): These marine turtles can be found in the coastal waters near Mt Waialeale and sometimes come ashore to nest on sandy beaches.
4. Amphibians:
- Kauai tree frog (Litoria caerulea): A small, bright green frog that inhabits the vegetation near streams and waterfalls.
- Hawaiian stream frog (Rana hawaiiensis): A secretive frog found in streams and waterfalls on the mountain.
5. Invertebrates:
- Mt Waialeale is also known for its diverse array of invertebrates, such as snails, spiders, and insects, many of which are endemic to the region.
It's important to note that the ecosystem of Mt Waialeale is fragile and vulnerable due to its unique and extreme weather conditions. Efforts are made to preserve and protect the habitats and wildlife of this extraordinary mountain ecosystem.