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Message: <blockquote data-quote="BackdoorArts" data-source="post: 621624" data-attributes="member: 9240"><p>These variants are everywhere so it's likely not a local duck but something that's been in the genetics for a while. Can't honestly say that it becomes a dominant/recessive thing, but who knows?! There are similar morphs in a lot of bird species. The coolest are the white/grey morphs in Yellow-throated Sparrows. They cover both sexes (i.e. both males and females exist in each morph) and their personalities are so unique that you almost never see a mating couple of identical morphs because you need both personality traits to make for a successful brood. There's an article out there about it, I just can't find it at the moment.</p></blockquote><p></p>