Muscovy duck
The Muscovy duck is non-migratory species which normally lives in forested swamps, lakes, streams, nearby grassland, and farm crops, and usually roost in trees at nighttime. The duck's diet consists of roots, stems, leaves, seeds of aquatic plants and grasses as well as terrestrial plants including agricultural crops obtained by grazing or dabbling in shallow water. It may also eat small fish, amphibians, reptiles, crustaceans, insects, millipedes, and worms. The Muscovy is an aggressive duck; males tend to fight over food, territory or mates. The females fight with each other less often. Some adults will peck at the ducklings if they are eating at the same food source.