One of our tiny chicks has a habit of biting the others on the beaks, causing bleeding, which makes a big target for everyone else to peck. By 'biting', I mean actually grabbing the other chicks beak in hers and yanking. Its the skin around the nostrils that gets bloody. We separated the aggressive chick, but the loud constant cheeping is a drag. So, what's this all about?
Interesting. Usually they get over it in a few days and find funner things to do. Is the brooder big enough?
This is part of the problem I used toys for. Rubber cat toys and tough balls with bells in them. A mirror may help too