Wilkins's Finch is confined to Nightingale Island in the Tristan da Cunha archipelago. It uses its large bill to crack hard fruits of Phylica arborea and reach their seeds. The specialist account gives a November–January breeding season.
The specialist account gives a length of 20–22 cm and describes a robust bird with a large, deep-based bill. Males have olive-green plumage with brighter yellow on the throat and upper breast; females are slightly smaller, duller and more streaked.
It cracks the hard, nut-like fruits of Phylica arborea to reach the seeds and also takes invertebrates in tussock grass, on the ground and beneath trees. The account places breeding between November and January.
An extinction-risk assessment has not been added yet.