Parrot glass toby jug produced by Luminarc USA of Millville, New Jersey, circa 2010 for the Tropicana Las Vegas Hotel and Casino of Las Vegas, Nevada. Parrots are birds of the roughly 398 species in 92 genera comprising the order Psittaciformes, found mostly in tropical and subtropical regions. One-third of all parrot species are threatened by extinction. 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 and Australasia. Characteristic features of parrots include a strong, curved bill, an upright stance, strong legs, and clawed zygodactyl feet. Many parrots are vividly colored, and some are multi-colored.