So i have 9, week old chicks and 2 died. We made the broody box that was in a cage for the two mamas(they split up the eggs and both are mothers together?)and there was a narrow maybe 1 inch spot that one tried to squish itself out of. And another person in my household (my sister) thought a chick was stuck when coming out of its egg and tried to hatch it out of there herself. How do i prevent anything else like this happening? I wasnt able to put a picture on here but what commonly happens to them? Lastly,what do they need?ex:specific food?special cleaning and housing?