I am brand new at this. I will be getting 10 chicks in April. We are located on the east coast of Mass. Will I need to keep them inside for 4 weeks, then move them to the hen house with a lamp? I am not planning on heating the hen house. I am planning to use DLM. I read that they need 2-4 sq ft per chick? I could make the hen house "smaller" with cardboard or chicken wire and increase as they grow? Then hen house will be about 80 sq ft with an additional roosting area of 72 sq ft., fully insulated with natural light and an attached hen run. Thanks for your help!