Range map of Northern emerald toucanet (Aulacorhynchus prasinus)
BirdLife International. 2016. Aulacorhynchus prasinus. The IUCN Red List of Threatened Species 2016: e.T22726170A94913421. https://dx.doi.org/10.2305/IUCN.UK.2016-3.RLTS.T22726170A94913421.en. Downloaded on 28 November 2020.
Cephas