So I got these ducks a week ago, they were supposed to be Blue/Black Swedish. Two look like they are black Swedish and one looks of the blue variety (and looking more so every day). However I have an odd duck out. It looks like one is possibly a Rouen or Mallard? The top two are the black Swedish, the bottom one the blue, and the middle guy is my odd duck. The person I bought these from had bought the eggs from someone else and hatched them himself. I suppose it's possible an incorrect egg got mixed in. Either way all the ducks hang out with each other, but I do notice my odd duck is a bit more aggresive towards the others from time to time. This picture was taken at 3 days old. They are 7 and 8 days old today.