Today I went down to the coop and as I was feeding, I noticed that the BR rooster is all bloody with dried blood. I inspected him -- that blood isn't his. I checked all the other chickens in the pen -- they're not bloody either. The feeder was knocked over and the food was gone, but my hens could've done it. So, I'm trying to figure this out. He's too bloody to have gotten a mouse. I keep the barn closed up at night with the lights and radio on. Rat? There's no sign of that either. Why is my rooster bloody?