Juniper, T.; Parr, M. 1997. Parrots: a guide to the parrots of the world. Pica Press, Robertsbridge, Sussex, UK.
Juniper, T.; Parr, M. 1998. Parrots: a guide to the parrots of the world. Pica Press, Robertsbridge, UK.
Rosales, M., Valdivia, R. and Sovero, M. 2007. Evaluación Poblacional de Psittácidos en el Noroeste del Perú (1997-1999). Instituto Nacional de Recursos Naturales, Lima, Peru.
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Recommended citation
BirdLife International (2022) Species factsheet: Pionus chalcopterus. Downloaded from
http://www.birdlife.org on 19/05/2022.
Recommended citation for factsheets for more than one species: BirdLife International (2022) IUCN Red List for birds. Downloaded from
http://www.birdlife.org on 19/05/2022.