Extreme eastern Panama on Cerro Pierre (once), western slope of western Andes of Colombia from Risaraldaâ€"Antioquia border (Alto de Pisones on Cerro Caramanta) south to western Ecuador (south to Pichincha).
 
Population
Estimated population is unknown (2010).
Yellow-collared Chlorophonia (Chlorophonia flavirostris) [XC275845]
by Ottavio Janni from Esmeraldas: 2.7 km SSE Alto Tambo, Ecuador (call)
Yellow-collared Chlorophonia (Chlorophonia flavirostris) [XC157676]
by Jerome Fischer from Vereda La Linea, Apia, Risaralda, Colombia, Colombia (song)
Subspecies
Genus has sometimes been merged with Euphonia. Recent molecular-genetic analysis indicates that both genera belong in family Fringillidae.
Proposed subspecies minima, from La Guayacana, in Nariño and boehmi, based on aviary bird, origin uncertain, but nomadic behaviour of this species suggests that recognition of geographical subspecies is problematic.