Daisy is a very light brown hooded girl. She is almost 3 months old. I noticed the other day that she has a small line or ring around her neck that looks like its turning a rusty color. I wiped her down with a wipe and tried to wash her neck a little but it doesn't seem to be anything that will come off. I thought at first maybe she wiped her eyes or something and wiped it on her neck, but it's very faint. Obviously we noticed it right away because we always have them out when we are home. Could she just be changing color? I haven't read anything about this color changing, but doesn't mean it doesn't happen. Anyone else have a light brown turn rusty?