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) [XC439170]
by Rosendo Manuel Fraga from San Miguel Potrero Departamento de Itap\u00faa, Paraguay (call)
Yellow-rumped Marshbird (Pseudoleistes guirahuro) [XC880961]
by Don Jones from Recanto do Rachado, Pouso Alto, Minas Gerais, Brazil (song)