The time required to do this is referred to as the synodic period of revolution, as opposed to the sidereal period of revolution, which is the time required for a planet to move once around the Sun relative to the stars and is equal to the orbital period.
Mandarin ducks demand very specific breeding sites preferring to nest near water and, ideally, with the nest box accessed from the water, ie: facing a pond or lake, and raised on a platform a metre or more above ground level, reached by a ramp. secure enclosure is essential to keep the Mandarin ducks in and keep out potential predators such as foxes, hawks, crows, and domestic cats and dogs. Pairs usually are allowed a 2m x 2m pen, preferably with a small pond.
Mandarin duck is active during the day, mostly in the early morning and late afternoon hours. Mandarin duck is an omnivore (eats both plant- and animal-based food) and its diet depends on the season. During the autumn and winter, Mandarin duck eats acorn and various seeds. Insects, worms, snails, small fish and frogs are on the menu during the spring.