One of my Pekin girls has torn webbing. It's just happened maybe an eighth of an inch, not too serious, though the edge has turned pink instead of the normal orange. During the night, they live in a pen with a coop, the chicken wire is on the outside so they dont get caught on the sharp ends. During the day they live in a fenced in part of our yard. Their pond is a kiddie pool so there are no animals getting to them. What could have caused this and what do I do?????? HELP!