One of my 5wk old chicks is having a problem with one of her toes. It had this growth on it and then the growth fell off and you could see her toe nail. Last night the nail part of the toe was sort of bloody. The nail part fell off and it was just a nub. Its not bleeding anymore today but I am worried about it. It seems like part of her toe just fell off?!?!? One of the other chicks is trying to peck at it. What do I do? Why would this happen anyway? Thanks in advance for your help!