So I was able to trade in the unwanted rooster for a little RIR hen (about 12 wks old). The two hens I still have (14-16 wks old) are picking on her viciously! I have them separated but this means either she or the other two have very limited space. When I tried to put even just one of the hens (I've had for 3 months) she attacked the new one and it got loose on the thorny brush! It took me, my husband, and my neighbor 30 minutes to get her back into the yard. Big problem - I do not have separate secure sleeping areas I can put them in. She is so much smaller than the other two I am afraid they might actually kill her. HELP!!!