North-central and eastern Bolivia (La Paz, Beni, eastern Santa Cruz), interior southern Brazil (southern Mato Grosso and Mato Grosso do Sul east to western Bahia, south to north-western Sío Paulo and north-western Paraná, also western Rio Grande do Sul), Paraguay and northern Argentina (Salta and Formosa south to Tucumán, Santa Fe, Entre Ríos and Corrientes).
 
Population
Estimated population is unknown (2010).
Greater Thornbird (Phacellodomus ruber) [XC600264]
by GABRIEL LEITE from Parque Nacional de Ilha Grande, S\u00e3o Jorge do Patroc\u00ednio, Paran\u00e1., Brazil (call, song)
Greater Thornbird (Phacellodomus ruber) [XC746289]
by Dante Buzzetti from Victoria, Entre R\u00edos, Argentina (call, song)