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 a close relative of North American Wood duck. This beautiful bird can be found in Eastern Asia, China, Russia, Europe and certain parts of North America. Mandarin duck can survive in various habitats.t can reach 8 to 10 inches in length and weigh between 1.5 and 2.5 pounds. Females are larger than males. Mandarin ducks are known as one of the most beautiful and the most colorful birds. Their plumage is combination of white, black, grey, creamy, orange and green colors.