Maybe so my Runners are all speckled white now my blk and blue ones. They are 5 yrs old. My Muscovy drake10 and my 14 yr old female are the only two of my Muscovy who haven’t changed. Only color left on my others is mainly back end lolWow! 14 years! That is really awesome! I’m guessing they lose their coloring in time kinda like how people get gray hairs?