I am picking up my first 2 chickens tuseday. I have heard people talk about locking them in the coop for the first couple days. Should i do this no matter what or see what happens and only lock them in if they dont go in them self. ( they will be locked in the first night any way cause it will be dark by the time i get home with them any way. And on that note should i give them light the first night or just place them on the roost in the dark??