One of my hens was really sick last month. I was thinking it was coccidiosis and treated her for that, now she's better. While sick half of her comb turned jet black... I mean like India ink. She's back to normal now except her comb hasn't recovered. Now here's the weird part - the black areas have been fading in color, and today they started falling off. Big chunks of her comb just gone. She seems fine so I'm not worried about it, but have any of you heard of this? This picture was taken while she was sick so you can see how dark the parts of her comb got. Now imagine those areas gone.