Has she molted this year? What is her exact age? Chickens molt around 16-18 months, and then once a year thereafter, on average although some may not. When my pullets were over mated by their young cockerel, a few had really bare backs for almost a year until they had their first molt. So I was just saying that your hen may have been in poor condition before, but she should look better when her molt is complete. If not, look for a feather picker or something like feather mites.
When do you think enough waiting is enough waiting? (I'm asking since this has been going on for about 5 months)
