The Kauai AmakikiHemignathus kauaiensis is a yellow-green honeycreeper unique to Kauai. There is a Maui (see that page), Hawai’i, and O’ahu Amakihi - all quite similar in appearance. The Hawaii and Maui Amakihi are sub-species called virens and wilsoni respectively of the virens species, while the Kauai (kauaiensis) and O’ahu Amakihi’s (flavus) are separate species.