I had my first broody hatch last Fall and it was wonderful. It was a first for her and me so we went on ignorance and did fine! ha I can tell you, it is SO much fun watching the mama care for her chicks that if I had a broody I would not want to miss that and put them in a box. Mama teaches them to scratch, sun bathe, etc. from day one. When hawks fly over she signals and teaches them to all freeze (even though they are in a covered large pen) so they learn many things from mom. My is now sitting on her 2nd hatch (8 eggs) and its only day 2! Long way to go. I had built a new coop and pen last time so had moved her to that so no problem with the other flock as they were separate and she was fine with that. Now her last babies are in there (14 wks old) so not sure if that will be a problem or not. Will watch and if so, will put chicken wire to separate the coop for her & chicks. Also I worried about chicks from raised nest box (14 in. up) so lowered it to ground level and placed a 4x4 next to lip of box so they could jump on it in & out of box. Worked great. Sharon