Coscoroba coscoroba
The Coscoroba Swan (Coscoroba coscoroba) is a striking and taxonomically enigmatic waterfowl species, often considered a 'missing link' between true swans and geese/shelducks. This pure white bird, averaging 87-115 cm (34-45 in) in length with a wingspan of 130-155 cm (51-61 in) and weighing 3.4-5.4 kg (7.5-11.9 lbs), presents a graceful appearance. Its most distinctive field marks include its vibrant coral-red bill and legs, and prominent black wingtips, visible only when the bird is in flig...
Primarily found in shallow freshwater and brackish wetlands, including marshes, lagoons, and lakes, typically at low elevations.
Feeds primarily on aquatic vegetation, including leaves, stems, roots, and seeds, supplemented with aquatic invertebrates and small fish.
Coscoroba Swans are largely diurnal, spending much of their day foraging and preening, often resting on open water or sheltered banks. They forage by dabbling and head-dipping for aquatic vegetation, occasionally grazing on emergent plants. During the breeding season, pairs can be territorial, de...
The Coscoroba Swan is endemic to southern South America, with its primary breeding range extending across central and southern Chile, Argentina, Uruguay, Paraguay, and parts of southern Brazil. During the Austral winter (April-August), populations from the southernmost breeding areas undertake si...
Least Concern
- Despite its common name, the Coscoroba Swan is not considered a 'true swan' (genus *Cygnus*); it is often placed as a sister group to all other waterfowl, or as a distinct lineage between geese and swans. - It is the only species in its genus, *Coscoroba*, making it evolutionarily unique. - Its...