Teal, mallard, muscovy and mandarin are all types of what?
Muscovy duck crossed with mallards in captivity to produce hybrids, known as mulard duck ("mule duck") because they are sterile. Muscovy drakes are commercially crossed with mallard-derived hens either naturally or by artificial insemination. The 40–60% of eggs that are fertile result in birds raised only for their meat or for production of foie gras: they grow fast like mallard-derived breeds but to a large size like Muscovy ducks. Conversely, though crossing Mallard drakes with Muscovy hens is possible, the offspring are desirable neither for meat nor for egg production. In addition, Muscovy ducks are reportedly cross-bred in Israel with Mallards to
Red-billed teal them. The sexes are similar, but juveniles are duller than adults. This is a quiet species, but the displaying male has a "whzzt" call, whereas the female has a soft Mallard-like quack. The red-billed teal is a bird of freshwater habitats in fairly open country and is an omnivore. It feeds by dabbling for plant food, or foraging on land mainly in the evening or at night. It nests on the ground in dense vegetation near water. This is one of the species to which the "Agreement on the Conservation of African-Eurasian Migratory Waterbirds" (AEWA) applies. Red-billed teal The red-billed