Olivaceous woodcreeper (Sittasomus griseicapillus)

The olivaceous woodcreeper is a passerine bird of the tropical Americas. It belongs to the true woodcreepers of the ovenbird family .

It is the only member of the genus ''Sittasomus'', but includes 15 vocally and morphologically distinct subspecies in 5 groups, some of which are candidates for a future split.