I recently tried my hand at hatching chicks, unfortunately, only three ended up hatching and of those three only one is left. She is old enough to go out into the pen with the rest of my flock, in fact, shes almost too old to still be in the brooder. However, every time I try to I introduce her to the flock, my chickens end up terrorizing her and pinning her down and aggressively attacking her. I was a bit worried about this happening and I'm not sure what to do. I have left her out there during the day in a dog crate with food, water, and shade for a few weeks, but they still havent stopped attacking her every time I let her out. What should I do to integrate her into the flock? Shes getting too large for her brooder and needs to be outside asap