2 ducks brooding on same nest, will they co parent?

[Qui1980]

thank you for this thread as I have the same challenge. My Pekin and Muscovy are sharing a nest with 18 eggs!!!!!! Male is a Muscovy. I understand I will have a split hatching, so am preparing a temporary incubator for the Muscovy eggs with the assumption once they start to hatch, the others will be left alone. It is quite funny to see them try to share the nest and pushing each other to get the best spot . I expect less than 50% hatching, so I am letting them keep the full nest. I may be wrong - then hubby may NOT be happy

Can I ask what happened in this situation? How many hatched?