I have an Embden gander and no other goose, he mates with my muscovy ducks and has for almost 5 years, but I haven't let them sit on any eggs till last year and we had 1 muscovy duckling hatch. He is pure Muscovy. But I am going to let my Cochin Bantam sit on 3 Muscovy eggs because she is so broody I just gave into her, My question is can these eggs still be viable since my gander has been breeding with these ducks? or will they even hatch at all. Last year he had 1 duck as his mate but this year he has taken on 2 more so he has been mating with 3 of the ducks and I have no idea whos eggs belong to who. Should I just take the eggs out from under my bantam and forget about trying to hatch anything. I don't want deformed babies. Thank you for your advise.