Hey there, Mandarin ducks are EXTREMELY good flyers!! Even if you clip their wings, somehow they still manage to fly

They will usually lay a clutch of eggs that the female mandarin incubates, around 10+ eggs usually, although they may lay more if they decide to brood another clutch of eggs later in the year...they are very light weight ducks (even light than call ducks) and are very well adapted for flight!! They aren't usually aggressive birds but are very flighty and definitely do not like to be handled or disturbed in any way...I suppose you would call them more of an ornamental duck breed! Here is a link about mandarin ducks that may help
http://www.canaryzoo.com/bird specie mandarin duck.htm