The Hawaiian Gallinule, Moorhen, (Gallinula cloropus sandvicvensis) or the 'Alae'ula is found in wetlands. The Moorhen is slate gray, and is darker on the head and neck than elsewhere. The gallinules are endangered species and are endemic to Kauai and Oahu only. It stands 13 or 14 inches tall. The Moorhen's distinctive feature is its bright red bill with a yellow tip. Its flank and under its tail are white and its feet are yellowish green.

They inhabit freshwater ponds, marshes, irrigation ditches, reservoirs, taro patches, and rice fields. Gallinules feed on algae, aquatic insects, mollusks, water plants, and grasses. Mosquitoes breed in the water and they spread diseases.

They build their nests on folded reeds and lay 6-10 eggs. They are becoming extinct because mongooses eat their eggs and humans destroy their homes. There used to be a lot of Moorhens at Kaelepulu Pond, but only a few can be found today.