I got 6 d'Uccles, all born on the same day (same hatch). Thing is, while the other chicks are growing well and feathering out just fine, this one little chick isn't. It looks like it's about a week old, but it's not, all the chicks are 5 wks. old. It's eating and drinking just fine and seems healthy in every other way, other than being tiny and feathered like a wk. old chick (still has fuzz). I got the chicks from the woman at the local co-op. That was the only hatch she had with them. Any ideas on what the problem could be? Thanks!