Hi, i could do with some help, we recently added 3 hens to our 2 original hens & one of the original hens accepts the new three, however one of them doesn't and is aggressive toward the new three. I've let them out in the yard together and have had to put the aggressive hen in solitary confinement to try and chill her out a bit. I haven't put them in the same coop yet as I've had two coops side by side for a week so they can see each other. Is there anything i can do to atop one hen being so aggressive? I understand that one of them has to rule the roost but shes quite nasty! Any help would be appreciated thanks