Bare-faced Ibis is widespread in South America, occurring in Ecuador, Colombia, Guyana, Surinam, Brazil, Bolivia, Paraguay, Urugay and Argentina (Matheu and del Hoyo 1992).
In Venezuela, the Bare-faced Ibis typically inhabits elevations up to 500 m, but has been recorded as vagrant up to 3600 m. It occurs in the Maracaibo Basin, river valleys in Andes (sight records in Mérida; Barinas), eastern Falcón to northern Aragua (Ocumare de la Costa Rica; Maracay), in Miranda, and generally east of Andes from Táchira, Apure, Barinas and Guárico to northern Bolívar (east to the lower Río Caura) and in northwestern Amazonas (Hilty 2003).
In Colombia P. infuscatus can be regularly found up to 1000 m. In the Sabana de Bogotá, it has become fairly regular at ca 2600 m over the past decade (C.D. Cadena, unpublished data). The species is usually found in the Sinú Valley, Santa Marta and western Guajira. It is also commonly found in the southern Cauca Valley, Magdalena Valley, northwestern Santander, western Caquetá and Vaupés (Hilty and Brown 1986).
In Ecuador, the Bare-faced Ibis is a very rare visitant to sandbars and adjacent grassy areas. There are only a few Ecuadorian records of these species, all of them recent (since 1964). The first two involve birds that were collected along the Río Napo. Since then there have been a few sightings along the Río Napo, in the lower Río Aguarico/Lagartococha region, and near Río Agrio. No seasonality patterns are evident (Ridgely andGreenfield 2001).