It is found in Uruguay, northeastern Argentina and southernmost areas of Paraguay and Brazil.

In early 2021, the former subspecies P. o. bridgesi, found in southwestern Bolivia and northwestern Argentina, was elevated to species rank as Yungas guan.

[2] Its natural habitats are subtropical or tropical moist lowland forest.

[3] The bird measures an average of 73 centimeters in length and weighs an average of 1.2 kilograms, being very similar in appearance to its smaller relative, the rusty-margined guan (P.

[4] Coffee beans digested by the bird are sold for high prices.