My chicks are all 7 weeks old and completely feathered. All except Ethel! She seems to be too far behind everyone else. She was my "free" chick and I don't even know what she is! If there something wrong with her, or is she just slow to develop? She eats, drinks, runs, jumps and acts entirely like a chicken should. I'm not worried, but I've never seen this slow of development before! Sorry for so many photos. Thanks for the help!