I don't know why but my hens are pecking and fighting each other. My rooster went to stop the fighting and whatever they did he had blood on his comb, not a lot but enough for me to notice. Could it be the really cold weather we just received. They are free range so they have lots of room and their feeders are full. I did however keep them in the coop a little longer this morning because it was in the 20's I let them out around 10am. Thanks for any advice to input.