Macaw
Biology
Of the many different Psittacidae (true parrots) genera, 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 rules. In addition, the related macaw-like thick-billed parrot is sometimes referred to as a "macaw", although it is not phylogenetically considered to be a macaw species. Macaws are native to Central America and North America (only Mexico), South America, and formerly the Caribbean. Most species are associated with forests, but others prefer woodland or savannah-like habitats.
Biology
Proportionately larger beaks, long tails, and relatively bare, light-coloured medial (facial patch) areas distinguish macaws from other parrots. Sometimes the facial patch is smaller in some species and limited to a yellow patch around the eyes and a second patch near the base of the beak in the members of the genus Anodorhynchus. A macaw's facial feather pattern is as unique as a fingerprint.
Biology
The largest macaws are the hyacinth, Buffon's (great green) and green-winged macaws. While still relatively large parrots, mini-macaws of the genera Cyanopsitta, Orthopsittaca and Primolius are significantly smaller than the members of Anodorhynchus and Ara. The smallest macaw species, the red-shouldered macaw, is no larger than some parakeets of the genus Aratinga.
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