South-eastern Brazil (southern from southern Goiás, Minas Gerais and Rio de Janeiro) south to eastern Paraguay, north-eastern Argentina (Corrientes and northern Santa Fe, rarely northern Entre Ríos) and northern Uruguay.
 
Population
Estimated population is unknown (2010).
Yellow-rumped Marshbird (Pseudoleistes guirahuro) [XC375111]
by JAYRSON ARAUJO DE OLIVEIRA from C\u00f3rrego Cachoeira, Tapira, Minas Gerais, Brazil (flight call)
Yellow-rumped Marshbird (Pseudoleistes guirahuro) [XC488914]
by JAYRSON ARAUJO DE OLIVEIRA from Laurentino, Santa Catarina, Brazil (song)