I'm worried for a chick. I don't know what caused it, but a 1 day old chick's wing is a bit bloody. The parents are doing a superb job looking after it, but I'm not sure what to do. Will it heal on its own? The chick is still active and chirping away - I only saw the wound when it was being fed by its mother. There is no blood inside the nest box and I don't think any blood is flowing from the wing either. Please help!