Hi all--Another question re my four-week olds. They are currently installed in the outdoor brooder (inside the coop) as of last night. Doing great. My question deals with outdoor playtime: Their adjoining run is ALMOST finished, the only thing I have left to do is the apron (skirting the hardware cloth underground, outward). It's halfway done. Is their run safe to use for a few hours in the day, if I'm checking in on them every 40 mins? And, if so, at this age can they stay out there pretty much all day, provided they have enough water? Thanks again Anne Marie.