I have 2 mama hens in the coop with their chicks. One mama with one chick and 1 mama with 3 chicks. it’s been 5 days and they won’t leave. The biggest issue is that the mama with 1 chick bullies the other mama and corners her. She got bloodied up today. I tried to take the bully hen out with her chick but she ended up going right back to the coop.