The Olive Warbler, Peucedramus taeniatus , is a small passerine bird, the only member of the family Peucedramidae.

This species breeds from Arizona, USA, south through Mexico to Nicaragua. It is the only bird family endemic to North America (including Central America). It was in the past classed with the Parulidae (New World warblers), but DNA studies suggest that it split early from the other related passerines, prior to the differentiation of the entire New World warbler/American sparrow/Icterid group. It is therefore now given a family of its own.

The Olive Warbler is a long-winged bird. It has a grey body with some olive-green on the wings and two white wing bars. The male's head and breast are orange, and there is a black patch through the eye. In the female and juvenile, the orange is replaced by yellow, and the black mask is more diffuse. The song consists of clear whistles.

It is a non-migratory insectivorous species of coniferous forests. It lays 3-4 eggs in a tree nest.

• Family: Peucedramidae
  • Olive Warbler, Peucedramus taeniatus