Fully mature adult Pekin ducks weigh between 8 and 11 pounds in captivity. Their average lifespan is about 9 to 12 years. Their external feathers are white sometimes with a yellowish tinge. This is more obvious with ducks that have been reared indoors and not exposed to sunlight. An adult Pekin will lay an average of 200 eggs per year if it does not try to, or is prevented from, hatching them. Pekin ducks, for the most part, are too heavy to get airborne. While some individual ducks may be lighter and capable of short bursts of vertical flight, clipping their flight feathers (pinioning) is generally unnecessary. They are gregarious and will usually group together with other ducks.
As with most waterfowl, the Pekin duck has feet perfectly adapted for paddling through water but is also capable of walking while foraging and exploring as well. If keeping ducks, be sure to remove items from their environment which may cause tripping or stumbling, and house them on natural surfaces, such as grass, hardpack, straw, or sand which is gentler on the bones and ligaments, will not abraid the sensitive surface of the webbed feet, and is easy to keep clean. Ducks are happiest when they have free access to clean, safe water in which to swim and mate.