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.
Cool Facts. 1  Natural cavities for nesting are scarce, and the Wood Duck readily uses nest boxes provided for it. If nest boxes are placed too close together, many females lay eggs in the nests of other females. 2  The Wood Duck nests in trees near water, sometimes directly over water, but other times over a mile away.