The Puna Ibis is a dark ibis of the high Andes. It has long legs, a long decurved bill, and a patch of bare reddish facial skin. It resembles the largely allopatric White-faced Ibis (Plegadis chihi), but in adult plumage lacks the white on the face and has darker legs, a darker iris, and darker body plumage. It occurs in the Andes from central Peru south through Bolivia to extreme northern Chile and northwestern Argentina. Small numbers occur along the Peruvian coast, where breeding occurs locally. It occurs in flocks in alpine wetlands and pastureland, feeding by probing in mud. The nest is a platform of vegetation placed in tall grass in a wetland.