I hope some one can help me. I was told that I have cochins, and females. Three have a much larger comb and waddle than the other 3. Is this a tell-tale sign that they are roo's? Also, is this really a cochin? I haven't found any pictures of cochins that look like mine. They are only 7 weeks old. I'd appreciate any help. Thanks a lot!! I can't quite figure out how to post pics yet, but once I do, I'll get some up.