My 12 chicks are 10 days old. I have a mixture of easter eggers, columbian wyandottes and buff orpingtons. Their brooder is kept VERY clean since it is in my basement and it is kept at a constant 85 degrees. They have plenty of space. I clean their waterer out at least 4 times a day. Their feeder is always full. But- every time I reach my hand into the brooder they peck at me, fly and my arm and scratch me with their feet, and then run away in terror. I try to pick each one up at least once a day so they get used to being handled. I don't know what I'm doing wrong! I have given them EVERYTHING they need (plus more!) and they still act this way. Has anyone else had issues with chicks being this aggressive? I don't know what to do Any help would be appreciated!