Mountain Thornbills are endemic to Queensland’s Wet Tropics and inhabit upland rainforest. BirdLife reports their highest densities at about 1,200 m.
The regional field guide describes a small, pale thornbill with a pale eye and no white in the tail.
At one nest beside the Mount Lewis road in 2001, three adults delivered food and four were seen at the nest on one occasion. Nestlings were inferred from begging calls; the nest was not physically checked.
An extinction-risk assessment has not been added yet.