Got 2 rescue chickens today. They will be quarantined far far from my girls. Supposedly they are 1 year old. I felt so bad for them. They are missing a lot of feathers, they look horrible to me. The lady said they HAD a rooster, but no longer. All the chickens in the pen looked like this. Feathers on the back are only about 1/2" long, almost no "pantie" feathers- bare bums, and all the feathers on the underside look only about 1/2" long also. They were filthy, with poo stuck to the bums, so I bathed them and looked them over real well. No discharge from eyes or nose, no sneezing, normal poops, eating and drinking fine. I put them on clean water and 18% layer. Questions; Why are they like this? What do I do to help them? Do they need any supplements? See the bare bum? Any ideas appreciated, thanks!