Muscovy Ripple Gene Becoming Dominant?

[sotchicken]

I have a a couple ripple hens (and a bunch of non-ripples) as well as a solid black drake that does not carry ripple. I've hatched about 80 ducklings from my flock so far this year and all but two of them were solid or solid bibbed. Those two are full blown ripples. Is it common for a non-ripple drake to be able to produce rippled offspring? I was under the impression that both parents need to carry the ripple gene to produce rippled offspring.

 

[muddy75]

@casportpony @Isaac 0 @WVduckchick

 

[Miss Lydia]

@Pyxis