Big Mama (Silkie) has been with her two chicks in a brooder in my dining room since she hatched them, Sept 21st. At four weeks old, I thought it would be a good idea to get Mama and chicks back with the flock (I have 5 other Silkies, 1 being a roo). She has been such a great Mama taking care of the chicks, biting me when I put my hand in to change water etc. So, I took them out to the coop and run in my cat box and placed it in the run for 30 minutes, then I opened the door of the box at the coop door thinking Mama would want to take her chicks in there......nope.......she went in and came right back out. So I put the box back on the ground and oped the door. Big Mama came running out, promtly squated for the rooster and then grabbed Stevie Nicks (one of my white Silkies) by the hair on the top of her head and dragged her around that way until I pulled them apart! The chicks refused to come out of the cat box......I've been sat there for two hours waiting for Big Mama to come get the chicks but nope! She was off having a dust bath with the rooster!!!! I have now left the chicks in the cat box on the ground in the run with the door locked........what do I do now??????? Do I just leave the chicks to come out on their own? I have another broody Silkie setting in the coop....what is she likely to do to the chicks? Any advice would be greatly appreciated!