Buff-bellied Puffbird (Notharchus swainsoni) [XC411992]
by Ciro Albano from Botuver\u00e1, Santa Catarina, Brazil (song)
Buff-bellied Puffbird (Notharchus swainsoni) [XC546342]
by JAYRSON ARAUJO DE OLIVEIRA from RPPN Serra Bonita, Camacan, Bahia., Brazil (song)
Subspecies
Notharchus macrorhynchos (Sibley and Monroe 1990, 1993) has been split into Guianan Puffbird (Notharchus macrorhynchos), Notharchus hyperrhynchus and Buff-bellied Puffbird (Notharchus swainsoni) following SACC (2005).
Forms a superspecies with Guianan Puffbird (Notharchus macrorhynchos), and usually regarded as conspecific.