What would you get if you crossed

either.

 

I dont know, but I crossed a Fawn Runner with a Khaki Campbell and got sable duckling with blue/silver on the wings and back
These were hatched March 13th ( not the white one)

and this one hatched in January

 

I will let you know when mine hatch out. I have Black Swedish and Black & White magpies covered by a Welsh Harlequin and a Pekin.

My first 4 ducklings look like: 1 Black Swedish, 1Blue Swedish or blue Magpie (very dark grey or washed out black), 1 Chocolate magpie (or Chocolate Swedish?) and one lavender something - too pale to tell yet (very yellow duckling with pale grey head and back). The Magpie/Swedish markings look suspiciously alike in these four, so I guess I will know more in a few weeks when they feather out. I am guessing magpie with at least 2 of them because their head markings look splotchy and they seem to have more yellow fuzz on their bellies.

 

PM the user "rollyard"

He is quite knowledgable about genetics and phenotypes of Mallard Deriviatives in general.

 

Yes, definitely ask Rollyard.

One complication is that you probably do not know if your Swedish is pure for the dominant genes that produce the blue bibbed colour pattern. If she has two version of two important, dominent genes (Extended Black and Dominant Bib) then she will pass these on to all her offspring and they will influence the colour pattern on all of them (like, they will turn out solid coloured with bibs). But if she only has one dose of either of these then you will get some that are not solid coloured.

Plus both your ducks may be hiding recessive genes, liek recessive white, meaning that you could get some all white ones. So it is not possible to tell exactly what you will get without knowing the exact genetic make-up of the parents. but Rollyard is a very good person to give you an idea

 

Yes they are...very pretty ducks indeed.