Day 30 nothing happen duck eggs

[Sassy1991]

So i have cayuga/mallard duck eggs been 30 days no internal pipe or movement i took 2 of the 4 eggs out cracked open i thought they didnt form but two developed ducks just alot of yoke. But they had not moved i firgued all dead do i keep other two lobger or all my eggs gone

 

[Stipenvlerk]

So i have cayuga/mallard duck eggs been 30 days no internal pipe or movement i took 2 of the 4 eggs out cracked open i thought they didnt form but two developed ducks just alot of yoke. But they had not moved i firgued all dead do i keep other two lobger or all my eggs gone

Hi Sassy,

If I understand correctly, you found two normal developed ducks inside the egg?
Are you sure about the days?
Was it a natural hatch or did you use an incubator?
If you used an incubator, what was the temperature?