Young ducks laid small eggs and now stopped

[tabby15]

I got three runner ducklings and a drake in May. For three weeks now I have been getting a large greenish shelled egg nearly every day which I think is my black runner Marmite. The other two (caramel and apricot) are a bit younger (judging by when they started quacking) and I have had four or five variously sized white shelled eggs, some without a yolk. However for the past week no white shelled eggs at all. I have checked their pen and water thoroughly and raked through their bedding.
They seem happy. I have picked them up and checked that they are ok. It has got colder and days shorter here but marmite is still laying. Any ideas? Do I just need to wait til the warmer months again?

 

[HollyDuckFarmer]

Hi tabby15! Well I think that young ducks certainly can lay small eggs or eggs that are otherwise peculiar in another way simply just because they are young. So that could be. And I def see a change in egg production here as it starts getting dark earlier and the weather gets cooler. So that could be a factor too. Or one of your ducks might have a need for some more calcium. I think I might supplement with oyster shell (offered free choice) and perhaps even some Calcium Gluc. Liquid added to the drinking water for your ducks.

 

[tabby15]

Thank you. They have oyster shell and grit freely available but I may top up with shell to make sure. Not heard of the calcium supplement before. Their drinking water tub is quite big so may need to consider something smaller whilst I supplement it

 

[tabby15]

Well clearly something worked, whether more oyster shell, deeper bedding or perhaps they just got better at it! Two huge eggs both double yoked.