Rouen Drake

I just got two African goslings this week. Ducks aren't too thrilled. Then again they are spoiled rotten and are jealous of any of the other animals getting my attention

I would like to pick your brains, I have a Rouen pair, they were mating quite frequently and on Aug 29th the duck decided to start laying on the eggs. For the first couple of days she was on and off the eggs regularly but she decided one day to lay on them all day, and most nights, lately she would go off with the others for the night, covering her eggs so not to attract attention. What I would like to know if those eggs could still be viable since she leaves the nest overnight at least twice a week.Can she tell whether or not they are still growing? I just don't want her laying on eggs that won't be hatching.



My clan consists of the following :
In my front yard (nicely landscaped with my home)
2 Pekin 1M 1F
2 Ruen 1M 1F
These Ducks are older, and were raised together and are separated day/night from everybody else except for the Silkies escaping the larger chickens.
I have in the farm area / Back yard

3- Khaki Campbell 1M / 2F
2- Runner Ducks 1M /1F and a white Ruen mistress
6-Muscovies
2-African Geese juveniles I think 1M / 1F both hand raised by me and they think they are human. I know 1 is a male as the mating Pekins got him fired up and he was hanging out so to speak.
Approx 50 chickens too many breeds to name

Update: Those eggs did hatch for a total of six chicks.