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one of my girls are always in and they stay in for a bit but one is like my drake. My drake only maybe once a day for two mins at the most.Do your runners swim/bathe in their pool or pond very often? It seems like my girl barley ever gets in. Hmmm.....
One of my girls seem to have a permanent molt during the summer months. Her feathers always look ruffled up she is loudly complaining permanently, charging at me and both drakes - but she is also the best layer i have. She once laid an egg with 100 grams and a single huge yolk and lays up to two large eggs per day. Probably too much hormones in her body, but she will calm down in fall and so far she is doing good, eating, drinking pooping, all the usual duck stuff.How often do your adult runner molt? I have a 2 year old that’s on her 3rd on in 9 months. Where my others of the same age have only molted once.
Is this normal?
Maybe try some protein like some good quality cat food(dry) sprinkled over her feed.Mine molted back in late winter early spring but seem to have mini molts along through the year, where they don’t lose their wing feathers just body feathers.