Yes, the billy was a goat. I was only kidding. The lamb just was marked more like a goat than a sheep. We did contact the breeder of the ram and he said he had thrown some black lambs in the past. We aren't in the purebred sheep business so it didn't matter. It was just kind of a novelty.
We actually ended up with 3 lambs that looked like that last year. One was a single ewe and the other two were in a set of triplets. Two were marked like that (ewe and ram) and the other was white. I wish now we'd have kept the ewes but we ended up sending all of them to market.