A small Galápagos finch with a dainty bill. Bill is slightly curved on both upper and lower edges, and longer than it is deep. Male has a black hood, gray-brown upperparts, and a pale belly. Female is tan with whitish to buffy underparts. Both sexes have a variable amount of streaking on the breast. Bill is black on breeding male and orange on female and non-breeding male. Bill is smaller and less curved compared to other tree-finches. Female is similar to female Small Ground-Finch, but on that species the lower edge of bill is straight--not curved. Found on most of the larger islands, but absent from Española, Genovesa, and Marchena. Inhabits a wide range of habitats and elevations.