What breed are Arthur's duckling pals?

[hendersr]

Meet Yin and Yang. I was told by the two boys that sold me these ducklings that the parents were black and white. Could they be magpie mixes of some sort? And, yes, I know the other one (Arthur) is a Toulouse gosling.

Thanks in advance.

 

[desertdarlene]

Cute! Could be a magpie. I can't see the feet, but could they be muscovy?