I have 8 two week old chicks and they seem to get rowdy and loud once in a while and kind of fly at or over each other. I can't figure out if this is how they play or if they are being aggressive towards each other. There is no pecking going on as far as I can see. None of them is getting hurt. It's kind of funny to watch them, but I'm curious to know if this is normal for them to do at this age or not.