South-western Venezuela (western Barinas, Táchira), eastern Colombia (locally to near base of Andes), eastern Ecuador, eastern Peru, western Brazil and northern Bolivia (south to La Paz, Cochabamba and northern Santa Cruz). Considered by some authors to be a subspecies of Sibilant Sirystes (Sirystes sibilator).
 
Rarity Status
Currently this species is not classified as a rarity in this country OR information has not been updated.
White-rumped Sirystes (Sirystes albocinereus) [XC576370]
by Dante Buzzetti from Parque Estadual Chandless, Santa Rosa do Purus, Acre, Brazil (call, song)
White-rumped Sirystes (Sirystes albocinereus) [XC258952]
by John V. Moore from Sucumb\u00edos: 'La Selva Jungle Lodge', n bank R\u00edo Napo, Ecuador (call, song)
Subspecies
No subspecies.
Considered by some authors to be a subspecies of Sibilant Sirystes (Sirystes sibilator).