What is "monk parakeet"

n. ''Myiopsitta monachus'', a parrot of South America.

The monk parakeet (Myiopsitta monachus), also known as the quaker parrot, is a small, bright-green parrot with a greyish breast and greenish-yellow abdomen. In most taxonomies, it is classified as the only member of the genus Myiopsitta. It originates from the temperate to subtropical areas of Argentina and the surrounding countries in South America. Self-sustaining feral populations occur in many places, mainly in North America and Europe.