I let the flock out the runs today, went to open the gate and went back into the house to complete a few chores. I went back to be sure the feed and water were plentiful and found blood "all over" the coop! It looks like a chicken had a cut foot or something and bled wherever she stood, two roosting bars, the top of the nesting box too. I would assume that this is not enough blood to panic about, however, I looked at every chicken foot, vent, comb and generally everything and couldn't find an injury on any of my chickens????? I counted, and made sure all were accounted for but am stumped, I can't find an injury on anyone of them. Either I'm going blind or I'm missing something. Does this amount of blood look significant to worry about?