This parrot lives in New Guinea's mountain forests. The width and shade of its blue-purple neck collar vary by sex and subspecies.
The male nominate form is mostly green with a blue-gray neck collar. The female nominate form lacks it, while males of the other subspecies have a broader purple-blue collar.
It feeds quietly in the canopy on seeds, including those of Castanopsis and Lithocarpus, and can make long flights above the forest canopy.
IUCN Red List · Least Concern (LC) · Global
BirdLife’s 2024 assessment reports an estimated 2.5% tree-cover loss within its mapped range over three generations and a decreasing population trend.