Please help me figure out what's going on with my Rouen Duck's molt. The girl in the front is the one I'm concerned about. She's been like this since late Spring. For comparison, her sister (same age, same environment) to the rear has grown all new colored wing patches in just the past 2 weeks, since brooding her ducklings.
My thinking is that I highly doubt a mite infestation, since none of the other flock members show any sign. I believe Miss Dull Feathers has been laying an egg daily, and she's full of her normal friendly personality, so I don't think she's egg bound or ill in any way. Any other ideas, Duck Friends? Thanks in advance.