Look for Monk Parakeets in cities, suburban parks, agricultural areas, and open woodlands, often in close proximity to human settlements. They are commonly found in their native South American range and in established feral populations in parts of North America (e.g., USA), Europe (e.g., Spain, Italy), and elsewhere. Observe large, bulky stick nests in trees, on utility poles, or other tall structures.

These parakeets are easily identified by their bright green plumage, grey face and chest, and highly gregarious nature. They are very vocal, emitting harsh, chattering, and squawking calls, which often reveal their presence before they are seen. They typically fly in fast, direct groups.

Monk Parakeets are primarily active during daylight hours, from dawn to dusk. They are resident birds and can be observed year-round in areas where they have established populations, with increased activity during breeding periods.