2 weeks ago I bought 5 2-week old chicks, one was a little bit taller then the others. They were great and easy at first, very lovey. And about two days ago I noticed they were like flighing at eachother and trying to peck at eachother and if one chick moved too fast they would run after it in "attack". At first I thought it was the bigger one, so I quitely observed and they all do it! So then I thought they were in too small of a house, so my husband made a 4 feet by 2 feet cage for them. We have a watering thing in there, the food container thing they need, a pearch for them to sit on, a heat lamp (not too low and not too high, they seem good with that) but they are just attacking eachother. Is this a way for them to try and see whose "boss" or something or are they trying to kill eachother? What if they taste blood.. I heard they will kill the chicken... I would be very sad. I have also seen that their feathers are starting to come out.. could that make then mad? I just don't know what to do any more and it is taking up all my time trying to get them to stop. PLEASE HELP!