The Bugerigar (Melopsittacus undulatus, nicknamed budgie), commonly called parakeet, shell parakeet, or common pet parakeet in US English, the only species in the Australian genus Melopsittacus, is a small parrot belonging to the tribe of the broad-tailed parrots (Platycercini); these are sometimes considered a subfamily (Platycercinae). In the latter case, the Budgerigar is sometimes isolated in a tribe of its own, the Melopsittacini, although it is probably quite closely related to Pezoporus and Neophema. Though Budgerigars are often called Parakeets, especially in American English, this term refers to any of a number of small Parrots with long flat tails. The Budgerigar is found throughout the drier parts of Australia and has survived in the inlands of that continent.