The Olivaceous Woodcreeper (Sittasomus griseicapillus) is a passerine bird of the tropical Americas. It belongs to the true woodcreepers (tribe Dendrocolaptini) of the ovenbird family (Furnariidae).
It is presently the only member of the genus Sittasomus, but includes several vocally and morphologically distinct forms. Thus, the species might be split into several in the future.
Read more about Olivaceous Woodcreeper: Description and Ecology