This species has a yellow to dark olive head. The throat, chin, malar streak, lores, eye-ring, and ear patch are bright yellow in any case. The rest of the plumage is yellow with dark olive upperparts, wing and tail. The variation in the head color is not well explained, but it is likely that the olive-headed individuals are females and/or immature birds.
The Olive-headed Brush Finch is classified as Endangered (EN), considered to be facing a very high risk of extinction in the wild.
Nothing known about the Olive-headed Brush Finch