I have 2 chickens that are seperated because they are younger then the 6 others. We got them all this year but they are about 4 weeks younger. They are in the pen right next to the others where they can see eachother but not get to them. They have been in there for several weeks now. Yesterday we decided to put them together because they are older and bigger and thought we would just keep an eye on them. At first they all kind of said I'm boss and went about doing other things. Well this morning I went out and the older ones had them in the corner picking on them so I got them out and found that they are all bloody and missing feathers on the tail and one on the back and tail. I have not seperated them again but not sure what to do. I have some VetRx and Terramycin but not sure what they are specific for. Can someone help me understand their uses? What should I put on them, I've heard of rooster booster will that work when it's so open and bloody? Any help would be great. We are first year chicken owners and have been doing great until now.