Bismarck Thicketbird - This little-known species was for long classified as a data deficient species by the IUCN, due to the general lack of reliable data on its distribution and numbers.
Megalurulus mariei - This is a long-tailed, medium sized "warbler" with a distinctive bold white supercillium. The bird’s plumage is unstreaked, with olive-brown uppersides and creamy white undersides.
Rusty Thicketbird - The Rusty Thicketbird is a bird species. Previously placed in the "Old World Warbler" family Sylviidae, it does not seem to be a close relative of the typical warblers; probably it belongs in the newly-recognized grass-warbler family Megaluridae. It is found only in Papua New Guinea.
Guadalcanal Thicketbird - The Guadalcanal Thicketbird is around 16.5 cm long, a slender bird with long legs and a long tail.