I have 10 chickens that have got along great since I introduced them 4 months ago. Now they are all fighting. I have 4 that are about 10 months old and 6 that are younger and just started laying. Even the 6 month old chickens are fighting amongst each other! They have been so happy together for months and the only fighting I witnessed was at the beginning when I first introduced them. The older ones would peck at and chase the younger ones away. But this is very violent! Now they are all fluffing up, yelling and grabbing each others faces. I'm afraid they are going to really hurt each other. I would separate them but they all seam to be fighting each other and I can't put them all in separate housing! Why would they start doing this? Is there something I can do?