I introduced 4 new banty hens to my reg sized flock a few weeks ago. Three of the banties have joined the flock just fine, but one hen gets jumped by my Barred Rock roo every time she leaves the coop. She has been staying inside all the time. I have to give her food where she's perched and set her down next to the water. She eats and drinks like crazy every time. If I put her in the yard, she just crouches and looks around and clucks nervously. And he will find her and ride her. He's gigantic compared to her, afraid he's going to hurt her. (we have a small banty flock of a roo and 5 hens) The funny thing is, the roo won't get on any of our reg hens, just this one banty! He is 17 weeks, she is about a year and a half. Any suggestions as to how I can help or will this stop? Help!