It is usually 74 cms long, with yellowish feathers around its head and neck, black feathers around its throat, brown feathers on the crown and forehead, and reddish legs. It looks like a heron, flying with its neck extended up to the sky, and it also has a long black curved beak. Its eggs are white with small blue and brown dots.
There are two kinds of Bandurrias in Chile: Theristicus caudatus melanosis, found from the Antofagasta to Tierra del Fuego; and Theristicus caudatus branicki, found in Parinacota.
In open fields and valleys, they made nests on dry woods, rocky territory and islands in the middle of lakes.