A large-sized Grallariidae of the Andes, where it occurs from southwest Venezuela south to central Bolivia, the Undulated Antpitta can be devilishly difficult to see, in part due to its ventriloquial vocalizations, despite being at least locally quite common. It inhabits the lowest strata of wet montane forests, including high-altitude Polylepis woodlands, and is often associated with Chusquea bamboo thickets, but the species will sometimes venture into the open during the early morning or late afternoon, especially in misty conditions. Basically dark brown above with a grayer crown and nape, the throat and moustachial region are white, separated by a narrow black malar line, while the underparts are predominantly orange-buff to ochraceous, heavily barred darker. Two subspecies of the Undulated Antpitta are recognized, but these are only marginally differentiated in morphology. The species’ nest has only very recently been described.