My broody hatched only One chick. I let them free range at the end of the day with the other big chickens and then usually put them back in the rabbit hutch they've been staying in. This evening when I went in to get her and the chick she had gone up to roost with the others with a little check underneath her. I took her be the chick down and put them in the hutch. At what point should I just let her keep the baby out full time?