I know this is probably a dumb question. I've never heard of it happening, and it wouldn't seem possible. I had a clutch of Muscovy ducklings hatch about 3 weeks ago. All of them had the normal eye stripes and what not, except for one. This guy has a slightly different looking bill, a more square head, a patch of feathers on his head that is slightly higher than the rest, and he's the same coloring as a roman gosling. Now to the point. My tufted roman gander was mating with the mom of these babies, while his mate was setting. Would there be any possible way on earth that this could be a hybrid? He's not thrifty at all, and is almost the same size as at hatch. His siblings are at least 4 times his size. The more I look at him, the more I think he looks like a goose. I'm sure it's my imagination. Lol.