South-eastern Brazil (southern Bahia to Rio Grande do Sul), north-eastern Argentina (Misiones and adjacent north-eastern Corrientes) and south-eastern Paraguay. Has disappeared from most of former range, and now very localized.
 
Rarity Status
Currently this species is not classified as a rarity in this country OR information has not been updated.
Population
Estimated population is 2,500 - 9,999 (2010) and decreasing.
Black-fronted Piping Guan (Pipile jacutinga) [XC268229]
by Roney Assis Souza from Intervales State Park. Carmo road, Brazil (song)
Black-fronted Piping Guan (Pipile jacutinga) [XC72021]
by Eduardo D. Schultz from Intervales State Park, S\u00e3o Paulo, Brazil (alarm call)
Subspecies
Has been considered to form superspecies with other members of genus, or even to be conspecific with them. Red-throated Piping-guan (Pipile cujubi) was formerly considered a subspecies of Black-fronted Piping-guan (Pipile jacutinga). Range overlaps with Blue-throated Piping-guan (Pipile cumanensis) in eastern Paraguay, but there is no evidence of interbreeding.