Bolivia, Brazil, Colombia, Ecuador, French Guiana, Guyana, Peru, Suriname, Venezuela.
Entire Amazon-Orinoco Basin, including south-eastern Colombia, southern and eastern Venezuela (north to south-eastern Sucre), the Guianas, eastern Ecuador, eastern Peru, northern Bolivia, and Amazonian Brazil; isolated population in south-eastern Bahia and northern Espírito Santo, in coastal eastern Brazil.
 
Population
Estimated population is unknown (2010).
Cinereous Mourner (Laniocera hypopyrra) [XC474974]
by JAYRSON ARAUJO DE OLIVEIRA from Parque Nacional da Serra do Divisor, State of Acre, Brazil (song)
Cinereous Mourner (Laniocera hypopyrra) [XC504270]
by JAYRSON ARAUJO DE OLIVEIRA from Reserva Natural da Vale - Linhares, Espirito Santo, Brazil (song)
Subspecies
No subspecies.
Genus often placed in Cotingidae, and possibly better treated in that family. Scientific name has often been misspelled as "hypopyrrha". Forms a superspecies with Speckled Mourner (Laniocera rufescens).