The Papuan Sittella occurs on New Guinea, where species accounts record it in forest and semi-open habitats. It feeds on invertebrates.
In the photograph labeled as an adult female by Oiseaux.net, the head is pale grey-white, contrasting with the brown, pale-streaked back and wings.
It is recorded in forest and semi-open habitats and feeds on invertebrates.
An extinction-risk assessment has not been added yet.