Parrots, also known as psittacines /ˈsɪtəsaɪnz/ are birds of the roughly 372 species in 86 genera that make up the order Psittaciformes found in most tropical and subtropical regions. The order is subdivided into three superfamilies: the Psittacoidea the Cacatuoidea and the Strigopoidea Parrots have a generally pantropical distribution with several species inhabiting temperate regions in the Southern Hemisphere as well. The greatest diversity of parrots is in South America.
Characteristic features of parrots include a strong, curved bill, an upright stance, strong legs, and clawed zygodactyl feet. Many parrots are vividly coloured, and some are multi-coloured. The plumage of cockatoos ranges from mostly white to mostly black, with a mobile crest of feathers on the tops of their heads. Most parrots exhibit little or no sexual dimorphism. They form the most variably sized bird order in terms of length.
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