Parrots are a family of birds belonging to the order of Psittaciformes and consist of approximately 350 species. Also known as psittacines, they are usually grouped into two families: the Psittacidae (true parrots) and the Cacatuidae (cockatoos).
Parrots are found in most warm and tropical regions, and are grouped as either old or new world birds. Parrot distribution from Africa, Pacific regions and Southeast Asiaare known as Old World parrots and parrot distribution from South America, including caribbean Islands are known as New World parrots.
Psittaciformes are the most threatened group of birds in the world and the macaw family rank first on the list as the most threatened of the Psittaciformes.
Characteristic features of parrots include a strong curved bill, an upright stance, strong legs, and clawed zygodactyl feet. Most parrots are predominantly green, with other bright colors, and some species are multi-colored.
Cockatoo species range from mostly white to mostly black, and have a mobile crest of feathers on the top of their heads. Most parrots are monomorphic or minimally sexually dimorphic. This means that the genders of all parrots are either visually apparent or not by their difference in plumage. For example: There is no apparent difference between the male and female gender in the African grey parrot- this is known as sexually monomorphic - whereas there is apparent difference in the male and female gender in the Eclectus parrot, visually apparent by their pulumage. This is known as sexually dimorphic.