Extreme south-eastern Bolivia (south-eastern Chuquisaca, eastern Tarija) and western Paraguay south to central Argentina (south to southern San Luis, northern Córdoba, central Santa Fe, north-western Entre Ríos).
 
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).
Voice
A shriller imitation of Rufous Hornero (Furnarius rufus), 'pfwee - tittle tittle', followed by a rattle. Also a descending 'chichichichi chee chee chee chee chee'.