Eastern Argentina (south-eastern Córdoba, southern Santa Fe and southern Corrientes south to eastern Río Negro and southern Buenos Aires), extreme southern Brazil (Rio Grande do Sul) and Uruguay.
 
Rarity Status
Currently this species is not classified as a rarity in this country OR information has not been updated.
Population
Estimated population is unknown (2010).
Sulphur-bearded Spinetail (Cranioleuca sulphurifera) [XC349725]
by id from Ciudad de la Costa, Departamento de Canelones, Uruguay (song)
Sulphur-bearded Spinetail (Cranioleuca sulphurifera) [XC21153]
by Dominic Garcia-Hall from Reserva Biol\u00f3gica do Mato Grande - Arroio Grande, Rio Grande do Sul, Brazil (song)
Subspecies
No subspecies.
Distinctive species. Relationships within genus uncertain.