Apteribis

See text Apteribis is an extinct genus of flightless birds in the ibis subfamily that was endemic to the Hawaiian Islands in the Pacific Ocean.

Olson and James speculate that the genus was endemic to Maui Nui, that the ibises were birds of the forest floor, that because of their flightlessness they were susceptible to becoming trapped in lava tubes, and that they may have exerted heavy predation pressure on Maui Nui's land snails.

[1] Analysis of the feathers from the Lanai specimen show an affinity to New World ibises of the genus Eudocimus.

The analyses also concluded that Apteribis may have had a brown-and-beige coloration similar to that of a juvenile Eudocimus ibis.

[2] Two species have been described: The holotype of A. glenos is from the Moʻomomi dunes, and other specimens are from Ilio Point and Kalaupapa peninsula.