Order: Anseriformes
Family: Anatidae
The Crested Duck is a medium-sized, sturdy waterfowl found throughout southern South America, including Patagonia. Recognizable by its subtle crest, this duck has a mottled brown and gray plumage, which provides excellent camouflage among rocky shores and reed beds. Unlike many ducks, both sexes look similar. The species is known for its adaptability, inhabiting both lowland lakes and high-altitude Andean lagoons. Crested Ducks are generally quiet and shy, often seen alone or in small groups. Their strong, broad bills help them sift through mud and water for food. They are resident birds, rarely migrating, and are well suited to the harsh Patagonian climate. Their nests are usually hidden in dense vegetation near water. The Crested Duck plays an important role in local ecosystems by controlling aquatic invertebrate populations and serving as prey for native predators.
Habitat
Found in lakes, rivers, marshes, and coastal lagoons from sea level up to high Andean wetlands.
Foraging
Feeds by dabbling and upending in shallow water, searching for aquatic plants, seeds, and invertebrates.
