Monk Parakeet

The Monk Parakeet is native to temperate and subtropical South America, particularly Argentina, Bolivia, Brazil, Paraguay, and Uruguay. It has also established substantial naturalized populations in cities across North America and Europe following escapes from the pet trade. Its most distinctive trait is nest construction: unlike nearly all other parrots, it builds large, bulky stick nests, often shared by multiple pairs, rather than nesting in tree cavities.

Body feathers are bright green on the back, wings, and crown, contrasting with a grey face, throat, and breast marked with fine pale scalloping created by light feather edging. The flight feathers are blue, visible as a contrasting panel on the closed wing and especially in flight. The tail is long and green with a bluish wash on the underside. The combination of a grey scalloped breast against green upperparts is distinctive among South American parakeets and separates this species from similarly sized all-green conures.

Sexes are alike in plumage, both showing the grey scalloped breast and green upperparts with no marked difference between males and females. Juveniles resemble adults but with slightly duller, less defined scalloping on the breast that sharpens after the first molt. A single annual molt renews the plumage.

Monk Parakeets favor open woodland, savanna, and scrubland across their native South American range, and have proven highly adaptable to urban and suburban environments, both in their native range and in areas where escaped populations have become established, including cities in North America and Europe. The species is largely non-migratory, remaining resident year-round, aided by its habit of building insulated stick nests that provide shelter in cooler climates.

Monk Parakeets feed on seeds, grain, fruit, and blossoms, foraging in flocks both in natural habitat and urban settings. Their most notable behavior is nest-building: pairs construct large stick nests with multiple chambers, often combining with neighboring pairs to form large multi-nest structures on trees, poles, or utility structures. Calls include loud, harsh, repeated screeching and chattering notes given frequently around nest colonies and while foraging in flocks.