Bolivia, Brazil, Colombia, Ecuador, French Guiana, Guyana, Peru, Suriname, Venezuela.
Amazon Basin from eastern Ecuador and south-eastern Colombia east to southern Venezuela, the Guianas and northern Brazil (east to Belém), and south to north-eastern Peru and northern Mato Grosso.
 
Population
Estimated population is unknown (2010).
Collared Puffbird (Bucco capensis) [XC436777]
by id from Reserva Natural Palmar\u00ed, Rio Javar\u00ed, AM, Brazil (song)
Collared Puffbird (Bucco capensis) [XC830172]
by JAYRSON ARAUJO DE OLIVEIRA from N\u00facleo da VALE - Caraj\u00e1s, Parauapebas-PA, Par\u00e1, Brazil (song)
Subspecies
Birds from south-eastern Colombia to Ecuador and eastern Peru sometimes treated as subspecies dugandi, but this form is doubtfully distinct.