I have 2 Blue Swede ducks. They are about 5 months old. This morning, one seems to be a lot "wetter" than the other after going in the pond. Not soaked to the bone but just not as water proof as she usually is like maybe she isn't getting enough oil on her feathers. It has been cold at night for the past week (35 F which is cold for our area). They just started laying eggs although there is one per day so not sure if it's just one of them laying or if they are both laying every other day. My question is - could there be a problem with the wet one? Should I be adding something to their diet to encourage oil production? They free range during the day and get Dumor Poultry Layer and peas or greens at night. I am a novice so any advice from you guys is appreciated!!