Just got these from a feed shop. Two seem to be sisters. They have speckled faces, and you can see their coloration. I'm not sure if the two grey ones are sisters or not. They both have bellies that are a yellowish white. But one has more yellow/white patchiness on top while the other is more uniformly charcoal on top. Any ideas what these might be? Also, they came with copper bands on their wings. Is anyone familiar with these, so that they could tell me the most stress-free way to remove these?