Hawaii Amakihi vs Kauai Amakihi

In short

The Hawaii Amakihi (Chlorodrepanis virens) and Kauai Amakihi (Chlorodrepanis stejnegeri) are similar Hawaiian honeycreepers, but they can be distinguished by subtle differences in plumage and habitat preference. Both species share a similar structure and behavior, making field identification challenging.

Identification tips

1. Location: Check the island; Hawaii Amakihi is found on the Big Island, while Kauai Amakihi is restricted to Kauai. 2. Plumage: Look for brighter yellow tones in Hawaii Amakihi. 3. Habitat: Note the elevation and habitat type; suburban sightings are more likely to be Hawaii Amakihi.

Size

Both species are similar in size, typical of small Hawaiian honeycreepers.

Plumage

The Hawaii Amakihi generally has a brighter yellow plumage compared to the Kauai Amakihi, which may appear more olive-green. However, plumage can vary with age and sex, making color a less reliable identifier.

Behaviour

Both species exhibit similar foraging behaviors, primarily feeding on nectar and insects, and are known for their adaptability in various environments.

Habitat

The Hawaii Amakihi is found at lower elevations and is more common in suburban areas, whereas the Kauai Amakihi is typically found in native forests on Kauai. Both species have shown some resistance to avian malaria, allowing them to inhabit lower elevations.

Voice

Vocalizations are similar between the two species, with both producing a variety of calls and songs typical of Hawaiian honeycreepers.