Hello! My father got these ducklings from the local bird market on the end of May and i’ve been taking care of them ever since, I tried looking what breed they are on Google but couldn’t figure out what breed they were, And one of the ducklings I’m convinced it has dwarfism of some sorts, the other ducks had their wings, beaks, feet grow normally but he’s just tiny compared to them is this normal ? (it’s the one on the very left)