I noticed a small sore on one of my week old chicks. It looks like it is from pecking, but can't be sure. I just moved them to a larger brooder this morning, because they were outgrowing the old one. I'm thinking that this little one got pecked by one of the others. I have 20 week olds...Should I do something at this point, or just keep and eye on it? It is a little bloody, but nothing major. I even caught one of the others pecking at it in the new brooder. Do I need to separate him? Put anything on it? I never had this happen before and don't want it to get infected. Thank you for any advice.