Myiopsitta monachus, commonly known as the Monk Parakeet or Quaker Parrot, is native to the temperate to subtropical regions of South America. Its natural geographical distribution includes countries such as Argentina, Brazil, Paraguay, Uruguay, and parts of Bolivia.

The Monk Parakeet inhabits a variety of environments typically characterized by temperate to subtropical climates. It is commonly found in savannas, woodlands, and forest edges, often near human settlements. These areas provide moderate temperatures and varied vegetation.

Myiopsitta monachus is unique among parrots as it constructs large, communal stick nests, often on man-made structures or large trees, providing shelter and breeding sites. It can adapt to urban environments and is known for its ability to exploit readily available food sources, including grains and seeds. The parakeet's communal nesting and adaptable diet allow it to thrive in different ecological roles, from seed disperser in natural habitats to urban adapter in cities.