I found blood in one of the chicken cages today! My heart nearly stopped, but all the chicks look perfect. I checked all of them over, and found blood on Penny's toe, and thought maybe she caught her toenail in the hardware cloth and wrenched it. Her toe wasn't injured, though. Then a little later I saw the side of her head! I think she reached up to scratch at the side of her head, and broke the skin somehow. I wiped the blood off her feathers and fuzz and checked her over. Her ear opening looks fine, and I can't find a scratch anywhere. ??? So I'm not sure what happened. I'm just glad she is acting normal! She ran, jumped, and played all afternoon outside in the coop.