Oh sorry, I didn't answer your questions. There are no broken feathers, just a bare patch 1-2" square. I'm assuming it was not like that however long ago she was moved to her own cage cause the owner was surprised to see it and these are honest people. Thanks for your help.
Oh, her plucking them out of lonliless is a possibility I hadn't thought of. Thanks, that could be it. As far as I know, she has always been alone because she is a bantam I assume and a runt at that so she is tiny. Even though my other hens are all gentle, when I moved them here and loosed them...
I was given a cochin frizzle from a flock with a clean health history. When they took her out of the cage to give to me, they saw the bald spot on her lower back for the first time. She lives in a tractor by herself because she is a runt who wouldn't make it with the big girls. It appears...