I don't think this is an emergency, but I'm baffled. When we went to tidy the henhouse before dark (two of our hens don't roost, they just sleep together on a shelf, so we de-poop the shelf before dark so they have a clean place to sleep. Not that it stays that way) we saw blood sort of spattered all over the inside. Our house is quite small, but it was all over the walls and the inside of the door. Not alot of blood, just several spattered areas. No feathers lying about anywhere. We only have 4 hens and all of them seem happy and bouncy and fit as a fiddle. They all laid today and in every way seem to be their happy selves. I did a quick inspection of the girls and one of our 1.5 year old sexlink hens seems a bit bare around her vent. No feathers there and no wounds. Everyone else was as fluffy as usual back there. They all get along quite well and we've never had any trouble with picking or anything. Any ideas? Anything else I should look for?