Bolivia, Brazil, Colombia, Ecuador, French Guiana, Guyana, Panama, Peru, Suriname, Venezuela.
Introduced to USA (B).
Eastern Panama and Colombia southern and east through Ecuador, eastern Peru and northern Bolivia to central and north-eastern Brazil, Venezuela and the Guianas.
 
Population
Estimated population is unknown (2010).
Chestnut-fronted Macaw (Ara severus) [XC472466]
by Jerome Fischer from Sani Lodge, Sucumb\u00edos, Ecuador (call, flight call)
Chestnut-fronted Macaw (Ara severus) [XC426194]
by Bobby Wilcox from Cerro Az\u00fal, Serran\u00eda de la Lindosa, San Jos\u00e9 Del Guaviare, Guaviare, Colombia (flight call, song)
Subspecies
Usually treated as comprising two subspecies, with western populations (castaneifrons) being marginally larger, but differences likely to be clinal.