I lost two chickens last night (6 weeks old) and I am probably going to replace them. However, we are limited on space, so I can only buy 2 or 3 chicks. Is that enough? Do you need to buy more at a time then that? WIll they do OK with only a couple of them? Also, at what point is it safe to integrate younger chicks with older chicks? I am SO new at this so I have no idea. Help, please?