Okay, so I have yet anther problem: One of our chickens has been losing feathers from the top of her back, by the base of her tail. At first, it wasn't so bad and I thoght it was just a moult. But this was about a month ago, and recently, it's gotten worse. The other hens are pecking at her, and she's lost even more feathers, and today I noticed that part of it was this blue/green colour! At first I was terrified and thought it was mold, so I tried washing it off, but then I realized it was the colour of the actual skin! This is really freaking me out. What should I do? I also have another hen who starting losing feathers about amonth ago, and she hasn't grown themback either. It's pretty cold out, and the skin is all red. I have no roosters, so it can't be that. was thinking of putting vaseline on the bare areas, to protect them from frosbite, but I'm scared that if I do that I'm somehow impeding the feather growth. I'm also putting lots of high-protein in their mashes. Lots of peanut butter, some yoghourt, some garlic. They have a laying mix...is it their diet? they're still laying and it's december, and Ihave no light in their coop.... Okay! If someone could offer help, that would be WONDERFUL!I'm really nervous.