Hello, my sister's chicken about a month or so ago started to limp and now today is unable to walk. She felt around her legs and she didn't respond in pain. She checked for bumblefoot as well and didn't find anything. The hen is about 8 months old and an Americana/easter egg chicken. She always sleeps on the ground of the barn, never the roost or the egg boxes. She separated her from the other chickens and is in the garage. She called me not knowing what to do but maybe put her down. Does anyone know what we can do for the chicken?