[2] This sombre dark brown robin is characterised by a narrow line, starting from behind the eye to the rear of the ear-coverts and white bars running down it wings.

[2] The dusky robin was described by the French zoologists Jean Quoy and Joseph Gaimard in 1832 based on a specimen that the authors mistakenly believed had been collected in "le port du Roi-Georges, à la Nouvelle-Hollande", but that had actually come from Tasmania.

[8] Sibley and Ahlquist's DNA-DNA hybridisation studies placed the robins in a Corvida parvorder comprising many tropical and Australian passerines, including pardalotes, fairy-wrens, honeyeaters, and crows.

The bird has short, slender bill and a moderately long tail, and it is much larger than other Petroicidae that occur in Tasmania.

[2] The bill is grey-black, the gape is yellow and puffy, iris are dark brown, with pale brown-grey legs and feet.

[2] Below the eye-stripe, ear-coverts, dark brown streaked cream which are more coarsely below the lore, grading to off-white to very pale grey-brown chin and throat.

[2] Some examples of their song can be heard here: https://ebird.org/media/catalog?taxonCode=dusrob1&sort=rating_rank_desc&mediaType=a®ionCode= This is little known because it is near impossible to distinguish between males and females while observing them in the field.

They usually occur in dry sclerophyll forest, but can also be found in coastal heathland, sedge land and Button Grass plains.

[2] The nest of the dusky robin is often large, untidy and cup-shaped, placed in a fork in a tree or stump, often a fire-blackened one.

[10] Materials for nest consist of rootlets, strips of bark, twigs, grass, stems of edges and pieces of fern-frond, bound with spider webs, often on a base of twigs and lined with grass, rootlets, fine bark, plant-down, hair, fur, feathers and wool.

There are numerous sources that were referenced by the Handbook of Australian, New Zealand & Antarctic birds that wikipedia were unable to find.