I also have a duck that lays pink eggs! I have 3 Swedish ducks, but 2 of them lay greenish white eggs and 1 lays pink eggs--I'm wondering what she might be crossed with. I don't have an answer for you, but I'll be sure to let you know if I ever find out!
I just adopted these black ducks from a woman who believes them to be Black Swedish. The females have brown and white tips to their wings, and their "armpit" feathers look like Welsh Harlequin or Khaki Campbell markings almost--brown and white and black speckles. Two of the females are more...