The rare and local Horned Coot (Fulica cornuta) is only found in a few high Andean lakes of Argentina, Bolivia and Chile, not Paraguay which has no Andean highlands. It’s a huge coot with a hairy, almost wire-like hairs, proboscis that hangs over the bill as on a turkey. Both sexes have this proboscis but it is slightly different in shape on males than females.
Its size is about 24 1/2 in. Head and body black, with chest and abdomen clearer. Under tail coverts grayish, sometimes with whitish. Bill greenish yellow to orange, with upper e dge black; without frontal shield. Forehead with black lengthened caruncle. Legs greenish yellow. Feeding consist of aquatic vegetables and the adults live in pairs.