I have 10 six week old chicks that were starting to get super friendly. I'd put my arm in the brooder and they'd all take turns jumping up on my arm. A few days ago I moved them to the coop and they are loving it! However, now they just run away from everyone including me. I want to let them out of the coop a little but I wouldn't be able to wrangle them up now. Is this normal chick behavior at 6 weeks?