my first time with a broody hen and the chicks hatched last night on day 21. I am very excited because I just let her do her thing and so far so good. The chicks are under her starting to move around. I have a few questions. 1. Do I remove the empty shells now? 2. Do they need chick starter feed today right away? 3. They are with mom secluded in my garage in a nesting box...I will keep her here and then this weekend I can move her outside where I have a separate chicken home and run away from the flock? Thanks for helping me!!!