I have hatched out about 26 chicks 10 days ago. I have them in a broader that's 4 ft by 6 ft encloser with heat lamp. I also have 5 chicks my brown legghorn hatched out 3 weeks ago that are still with her now. Now the problem is now that's going to get cold over the next few days (high in mid 40's lows in upper 20's) and I'm going out of town. My wife works and will be keeping an eye on them an able to check on them late afternoons. My concerns is not the chicks in the brooder, but the 5 with my brown legghorn hen. I have no way to put a heat lamp on the to stay warm. And then theirs the problem with there water freezing. I have no way to keep that from happening either. So I was wondering if I should put the 5 older chicks with my younger ones in the brooder or keep them with mom and hope my wife can keep the water thaw? What's your thoughts on my dilemma?