I walked into my coop tonight and was startled to notice that my feeder had a band of blood around the bottom 4-5 inches. It's a 30# galvanized feeder that sits on 2 cinder blocks. My second feeder (50# hanging galvanized)has an almost identical band blood on the part that holds the feed: 4-5 inches of blood, almost perfectly even all the way around. I immediately checked all of my chickens. A couple of them had blood on their feathers but no open wounds. One leghorn in particular had a good about of blood stains. I checked combs and battles especially, but nothing besides the usual Knicks on my large combed breeds. Not missing any chickens either. I am mystified!! As far as I'm concerned, it turned out fine because no one is noticeably hurt. But I'm curious to see if you guys have any clue as to what this is!