Is there a reliable way to tell australorps and barred rocks apart as very small chicks? I have some 1 week old chicks, and I'm not sure which are which, because they both have some white in the feathers that are coming in on their wings. One of the breeds is feathering out and growing much faster than the other. I don't have a picture on hand right now, but I can try to get one if that might help. Thanks.