The Muscovy duck (Cairina moschata) is a large duck native to Mexico, Central and Sotuh America. Small wild and non-domestic breeding populations have established themselves in the United States, particularly in the lower Rio Grande Valley of Texas, as well as in many other parts of North America, including southern Canada.
They are a large ducks, with the males measuring about 76 cm in length, and weighing up to 7 kg. Females are considerably smaller, and only grow to 3 kg., roughly half the males’ size. The bird is predominantly black and white, with the back feathers being glossy in males, while the females are much more ash colored.
This is a somewhat aggressive duck; males often fight over food, territory or mates. Some adults will peck at the ducklings if they are eating at the same food source.
The Muscovy duck’s diet consists of plant material obtained by grazing, small fish, amphibians, reptiles, crustaceans, insects and millipedes.
This species does not form stable pairs. The Muscovy duck mates on land or in water. Domesticated Muscovy ducks can breed up to three times each year.
The hen usually lays 8 to 16 white eggs, usually in a tree hole, which are incubated for 35 days.