I have eight 13 week old chicks and the bantam brahma has constantly started picking at the feathers on the standard cochin's feet. I only noticed the behavior yesterday because the brahma seemed obsessed with picking. It may have been going on a little while longer as I have noticed the cochin sitting down more than the others and in my ignorance though that her feet had not fully feathered in. In fact, it seems that the feathers have been pecked off as she is missing more than last week. They are in a 100 square foot run and I have added more protein to their diet. Should I isolate the brahama and hope that it will break her of the behavior? Would it help to trim the feathers from the cochin's feet? What should I do?? I plan to integrate the chicks with my four adult hens this weekend and that will give a total of 500 square feet of space for the 12 of them. Thanks for any advice!!!!