Ducks stopped laying eggs

[moms Tree]

I have 9 female Pekins that were born November 18, 2013. About 5 weeks ago, I noticed my first duck egg... then another, then 2 on the same day. This continued for about a week, and then all egg laying stopped. What would make the 2 ducks that were laying, all of a sudden stop? The weather in central Kansas has been crazy during this time period... everything from a high of 100 degrees, to a high of 50 degrees... could this be messing up their little cycles...making them think fall is approaching? Just looking for anything that makes sense... at a loss for why they just stopped.

 

[sourland]

Is there any possibility that they may have established hidden nests?

 

[moms Tree]

Nope... they rarely leave their duck house... hopefully, that will change, as we arm up... they have a ramp to outside... just aren't brave enough to use it, yet...