Dean Amadon, writing in 1942 after the Whitney South Seas Expedition, thought that it might have been introduced to the Cooks.

Its plumage is mainly dark blue and it has a white area over its upper chest, throat and lower face.

The juvenile lacks the white plumage of the adult and has a dark grey-blue face and lower parts.

At dusk groups fly around calling until dark, when they retreat to spaces between palm leaves to roost for the night.

[9] Blue lorikeets feed on the nectar and pollen of coconut palms (Cocos nucifera), Guettarda speciosa, Pemphis acidula, bay cedar (Suriana maritima), beach mulberry (Morinda citrifolia), Heliotropium foertherianum, Scaevola spp and Musa.

They also feed on insects among leaves and on the forest floor, and on leaf shoots and soft fruits.

[6][9] They are endangered primarily by invasive species, including cats, rats, swamp harriers, and mosquitoes carrying avian malaria.