Chauna torquata

The average body length is 85-91 cm and the weight is between 3-5 kg.

It is mainly distributed in southeastern Peru, northern Bolivia, Paraguay, southern Brazil, Uruguay and northern Argentina.
It is found mainly in tropical and subtropical swamps, bays and watersides.

The crested duck (Latin: Chauna torquata, English: Southern Screamer) has special webbing on its feet, so it is good at swimming, but it prefers to walk on land. The spikes on its wings are used to protect it from other species and predators. Crested ducks are good flyers, but they're not migratory birds. They live in groups and forage in fields and meadows.

Crested ducks adhere to the principle of monogamy in mating, and both sexes make loud calls to attract each other during courtship, which can be heard far away. They usually build their nests on reeds, wheat stalks and other aquatic plants along the waterfront. Two to seven eggs are laid in each brood, with both sexes incubating the eggs in a process that takes about 43 to 46 days. The chicks are able to walk after birth, but crested ducks will still care for their young for a few weeks until their feathers are full.

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