I have three week old chicks hatched from incubator that have been inside. I have tried to put w mama who has ten chicks out in coop. But they would not leave my side and she seemed Leary of them. Today I tried again and she pecked at them so I think putting them together is not an option. Or is it and they need to get used to one another. I would just hate to come back and see them dead. Also do they still need the heat lamp or will a home with shavings be enough. Help please.