Large, scaly, short-tailed parrot of humid montane forest with mixed Podocarpus and alders (Bosque Tucumano) of southern Bolivia and NW Argentina. Generally scarce and uncommon. Scaly plumage and green crown distinctive. Generally in pairs or small groups. Voice much higher and more shrill than Turquoise-fronted Parrot, the only large parrot that occurs in the same range.