The southeast Brazilian endemic and globally threatened Red-tailed Parrot is generally considered to form a superspecies with the Blue-cheeked Parrot (Amazona dufresniana) of extreme northeast South America, and the Red-browed Parrot (Amazona rhodocorytha). The latter species is also restricted to southeast Brazil, but its range lies entirely to the north of that of the present species, which occurs from coastal São Paulo south to Santa Catarina. This parrot’s populations were thought to have declined from 3500–4500 birds in the 1980s to fewer than 2000 individuals by the early 1990s, but a recent estimate suggested that 6600 individuals currently survive. Almost the entire population moves on a daily basis between its mangrove and other littoral forest roosting and breeding areas, and Atlantic Forest feeding areas. The Red-tailed Parrot is overall deep green with a red forecrown and lores, becoming purplish on the mid-crown, a bluish face, some red on the wing bend, and a broad red subterminal band and yellow tips to the otherwise green tail.