A parakeet is any one of a large number of small to medium-sized species of parrot, in multiple genera, that generally have long tail feathers. Older spellings still sometimes encountered are paroquet or paraquet.
The Australian budgerigar, also known as "budgie" or English parakeet or keet, Melopsittacus undulatus, is probably the most common parakeet. It was first described by zoologists in 1891. It is the most popular species of parakeet kept as a pet in North America and Europe.
The term "grass parakeet" (or grasskeet) refers to a large number of small Australian parakeets native to grasslands such as the Neophema genus and the princess parrot. The Australian rosellas are also parakeets. Many of the smaller, long-tailed species of lories may be referred to as "lorikeets". The vernacular name ringnecked parakeet (not to be confused with the Australian ringneck) refers to a species of the Psittacula genus native to Africa and Asia that is popular as a pet and has become feral in many cities outside its natural range.