Range map of Red-shouldered Macaw (Diopsittaca nobilis)
Adapted from: 

BirdLife International. 2016. Diopsittaca nobilis. The IUCN Red List of Threatened Species 2016: e.T61958763A95183956. https://dx.doi.org/10.2305/IUCN.UK.2016-3.RLTS.T61958763A95183956.en. Accessed on 30 January 2022.
BirdLife International. 2016. Diopsittaca cumanensis. The IUCN Red List of Threatened Species 2016: e.T61958866A95184154. https://dx.doi.org/10.2305/IUCN.UK.2016-3.RLTS.T61958866A95184154.en. Accessed on 30 January 2022.
Cephas