The Giant Snipe is a large wader with a disjunct South American range. It is 40–43.5 cm long, with a very long straight bill and broad, rounded wings.
It has a stocky body and relatively short legs for a wader. The back, head, and neck are patterned in black and brown; the belly is white, the flanks chestnut-barred, and the flight feathers barred.
It uses tall vegetation in swamps and flooded grasslands and is usually seen alone. It feeds at night, and its diet includes frogs, but seasonal movements and other behavior remain poorly known.
It gives a “kek-kek” call when flushed and a rasping, three-syllable call in nocturnal display flight.
At Botucatu State Forest, Brazil, a nest with two eggs was found on 16 February 2020 in wet grassland near gallery forest. The eggs lay in sunken grass and remained unhatched when the site was revisited ten days later.
Its straight, horn-coloured bill has a deep base. The legs and feet are greyish green.
An extinction-risk assessment has not been added yet.