Macaw
Overview
 
Macaws are small to large, often colourful New World parrots
Neotropical parrot
The Neotropical parrots belong to the family of the true parrots Psittacidae. Several species and one of the 32 modern genera have become extinct in recent centuries. Though fairly few fossils of modern parrots are known, most of these are from Arini...

. Of the many different Psittacidae (true parrots) genera
Genus
In biology, a genus is a low-level taxonomic rank used in the biological classification of living and fossil organisms, which is an example of definition by genus and differentia...

, six are classified as macaws: Ara, Anodorhynchus, Cyanopsitta, Primolius, Orthopsittaca, and Diopsittaca. Previously, the members of the genus Primolius were placed in Propyrrhura, but the former is correct in accordance with ICZN
International Commission on Zoological Nomenclature
The International Commission on Zoological Nomenclature is an organization dedicated to "achieving stability and sense in the scientific naming of animals". Founded in 1895, it currently comprises 28 members from 20 countries, mainly practicing zoological taxonomists...

 rules.
 
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