It sounds like Mareks, I’ve been dealing with it for the past 8 months took out 10 of my last 14 before I found some answers. The facebook group positive about Marek’s and avian leukosis virus has a whole studied arsenal that will help it has saved the rest of my flock and I have 12 new ones now...
I have one hen out of my 6 that is molting also, she looks awful and I feel like the others are picking on her more while she’s molting. I read your supposed to try and give them more protein when molting but how do you do that when there is only 1 out of the 6?