A small flock of ducks can be established at low cost. A higher investment is required to establish larger, or commercial flocks, which require better buildings, equipment and feeds. However, greater income, supporting several families may be realized if a large flock is properly managed. Most domestic ducks fall into this group. Some of the better known breeds of common ducks include the Pekin, Asylesbury, Rouen, Call, Indian Runner, Khaki Campbell, Cayuga, Albio, Maya, and Tsaiya.
Common ducks can interbreed, and produce fertile offspring.
Eggs from common ducks require about 28 days to hatch. This breed is believed to have originated in South America, although ancient records of this or a similar breed have been found in Egypt. There are both colored and white feathered varieties of Muscovies. The Sudani is a breed of Muscovy found in Egypt. Muscovies tolerate hot weather much better than common ducks.