I plan on having lots of ventilation in the coop (lots and lots, I live in Texas) and I plan on having all the ventilation adjustable with shutters, but do the shutters need windows? Do chickens need to see out for some reason? Or do I need to see in? They will be able to see out fine when all the shutters are open, it is just when I "batten down the hatches" for a storm that they won't have a view....