Maui Alauahio vs Anianiau

The Maui Alauahio and Anianiau are both small Hawaiian honeycreepers, but they can be distinguished by their range and subtle plumage differences. The Maui Alauahio is found on Maui, while the Anianiau is restricted to Kaua‘i. Males of the Maui Alauahio have brighter yellow plumage on the face and breast compared to the uniformly yellowish-green Anianiau.

Location is a key factor: Maui Alauahio is on Maui, Anianiau on Kaua‘i. Plumage: Look for brighter yellow on the face and breast of male Maui Alauahio compared to the uniformly yellowish-green Anianiau.

Both species are small, but the Anianiau is noted for its small size.

Maui Alauahio males have brighter yellow on the face and breast, whereas Anianiau females are evenly yellowish-green.

Maui Alauahio is found in the montane forests of Maui, while Anianiau is confined to the mountain forests of Kaua‘i.