I'm at a loss.. I have two female ducks and one male duck in our poultry run and the two females have been losing color in their faces and the one duck's feathers are getting lighter.. it's the strangest thing.. my two females are a bit older (5-8 years old) but I have a hard time believing that that would change anything. My male duck (a white Pekin) is totally the same.. it's just the girls that are looking a bit "drab" I originally thought it may be moulting but it has been months and they've only gotten shabbier looking. They are on a layer pellets and live with 8 peafowl and about 10 chickens in a 50'x50' run with a 12'x12' shed for shelter. They also have a filtered duck pond. I will attach pictures shortly.. anyone have any ideas what could be causing this or what I can do?