DavisDucks
Songster
Wow!!! I totally understand now... very interesting. Thanks so much!! Who wouldve thought that!!It's because your pekin is black 'under' the white White is recessive in ducks and if a duck gets two copies and it expresses, it covers up all other colors. So your pekin would have been black bibbed, were she not recessive white.
Extended black is dominant over mallard base, which is what a welsh harlequin's color is based on. So, the duckling only inherits one copy of white from the pekin parent, so it doesn't express, and inherits the dominant extended black gene. Thus, black babies