will a button hen ONLY sit in the nest on eggs when laying eggs or incubating them? Or will they sit in the nest just because its comfy or something? the eggs are warm, so she was laying ON them. should you only disturb a hen who's laying on eggs to water and feed them? what about cleaning the cage? my button cages needs to be cleaned everyday, and to do that I have to take out the nestbox... I'm not sure if i can not clean the cage for 16 days... And if you keep the chicks and mom and dad, do you need to put a heat lamp up or will the mom keep them warm?