What is the genotype of white Pekin ducks?

[Amer]

I know that Pekin ducks are recessive white, and am wondering, if you were to cross them to another breed, what colors would you typically get?

 

[Pyxis]

Totally depends on what is 'under' the white, which can vary. You'd have to breed to find out. Most times it's extended black, I've found, so you end up with black bibbed ducklings.

 

[Amer]

Totally depends on what is 'under' the white, which can vary. You'd have to breed to find out. Most times it's extended black, I've found, so you end up with black bibbed ducklings.

That's interesting. That is what I get with white Calls.
I don't have Pekins, so I can't find out, but was curious so I could be more knowledgeable on the breed in the future.