Can the older girls see them currently? I thought you posted before how one of them was sitting over top of the chicks water.I read the article on brooding in the coop. I was intrigued that I was tempted to let the chicks have access to the older chicks (they are not a year yet, so I don't want to offend the girls by calling them adults.) but was too nervous to do it. Apparently it is okay. I will probably wait another week though. Four weeks just seems brighter to me.