I have 20 chickens, all about a month old. Most of them have developed feathers by now (as you can see on the chicken in the background), but one little guy is still mostly baby fuzz. She has big wings on the very ends of her wings, but not on her body like the others. We did get one "mystery chick" in our order, so she could be anything. Is she a type of breed that just develops slowly, or could she have a problem? Thanks in advance for the help with our "ugly duckling!"