I have a 3 1/2 yr old SLW hen that has skipped molting last year and doesn't appear she will this year either. She lays, eats like all the others in my flock, very active and I can't find any parasites on her at all. She was also wormed as well. Her feathers that she does have are faded on top or the quills are bare or just stumps on her under side. Her vent area is naked or more just worn down stumps of quills. She is the lowest in pecking order but the others haven't caused the feather loss. I kept waiting last fall for her to loose these old feathers and cover that naked rear end. She has gone all winter spring and summer about to head into fall again. Why didn't she molt and grow new feathers? Anyone else have a perfectly healthy acting hen to do this?