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) [XC668956]
by from Setor Samambaia, mata seca, perto da UFG-Agronomia, Goi\u00e2nia-Goi\u00e1s, Brazil (song)
Yellow-rumped Marshbird (Pseudoleistes guirahuro) [XC414833]
by Robson Silva e Silva from Piscicultura - Goi\u00e2nia, Goi\u00e2nia, Goi\u00e1s, Brazil (song)