An island thrush endemic to the Tristan da Cunha group in the South Atlantic. On Tristan da Cunha it is mainly reported around the mountain base and gulches; on Nightingale and Inaccessible it occurs across all habitats described by the island account.
On Tristan da Cunha, the nominate form has brown upperparts mottled dark on the crown and back. The throat and breast are also dark-streaked; the sexes are similar.
On Nightingale and Inaccessible, it forages along beaches and within penguin colonies. On Inaccessible it also enters seabird nesting burrows.
An extinction-risk assessment has not been added yet.