The Olivaceous Greenlet is locally recorded in montane forest on the eastern Andes. Its head and upperparts are olive, with olive-yellow underparts. It forages in the canopy and subcanopy at forest edges, in second growth, and in broken forest.
The head and upperparts are olive, and the underparts are olive-yellow, although they can look uniformly olive in the field. The iris is pale brown.
It forages in the canopy and subcanopy at forest edges, in second growth, and in broken forest on the eastern Andean slope.
An extinction-risk assessment has not been added yet.