I noticed last night I could hear one of my ducks breathing and this morning I saw that her eyes were watering. I only have three ducks and keep them in the wood shed with a heat lamp, pine shavings, waterer, container of water for washing their heads, and feed. I change their water and feed twice a day and clean their cage once a week. The other two ducks are fine. This one with the problem is a runner and was actually supposed to be a khaki campbell. She is very timid and lets the other ducks have their turn with the water before she gets up the nerve to push her way in so I don't think she is washing her head and bill as often as the others. Today, I cleaned their cage and gave them a bigger deeper container to wash their heads and bills in. Should I separate her from the others and treat her with antibiotics? Thanks so much!