Brazil, Colombia, French Guiana, Suriname, Venezuela.
Extreme eastern Colombia, south-western Venezuela and Amazonian Brazil (from upper R Negro drainage east to Manaus area, south to Mato Grosso); also southern Guyana, Surinam, French Guiana and adjacent north-eastern Brazil (northern Amapá).
 
Population
Estimated population is unknown (2010).
Pale-bellied Mourner (Rhytipterna immunda) [XC519196]
by Mauricio \u00c1lvarez-Rebolledo (Colecci\u00f3n de Sonidos Ambientales - Instituto Humboldt) from PNN Chiribiquete, sararamano, Colombia (?)
Pale-bellied Mourner (Rhytipterna immunda) [XC333326]
by Tulio Dornas from Comodoro, Mato Grosso, Brazil (song)
Subspecies
No subspecies.
Placed by early authors in the family Cotingidae, with supposed close relationship to genera Laniocera and Lipaugus. However, well-supported anatomical evidence indicates that it is a tyrannid, having close affinities to Sirystes, Casiornis and Myiarchus.