I have 4 chickens (all girls). A blue andulusian named BB (11 months old) a silver lakenvelder named raspberry (11 months old) a sicilan buttercup named alex (11 months old) and a welsummer named coco (about 2 years old). Right now BB and raspberry are together and coco and alex are together. I can't get the 2 groups together. They have been next to each other in a cage for weeks. and if i try to put them in together the fight get all bloody. BB, Alex, and Raspberry all grew up together but they have been separated and now none of them get along with each other except for the groups they are in right now. They have already made each other all bloody and i can't seem to get them together. How do i intergrate them?