Chicken laying on duck eggs

[Wilbur275]

Hello need some help I have a chicken setting on 5 duck eggs. 7 days left until hatching. There is a heavy urine smell in the garage and on the eggs is this natural.

 

[aart]

Hello need some help I have a chicken setting on 5 duck eggs. 7 days left until hatching. There is a heavy urine smell in the garage and on the eggs is this natural.

No, it's not.
Better check that nest for poops or any other rotten thing.