Weird egg should I be worried

[feyhope]

There is a hard shell under the paper skin and it feels like a full egg. Is my duck getting too much shell?
The skin also dripped a bit of clear fluid.
My ducks were bought in April 2019, they have been laying fine since then, I have three so do not know which exactly laid this, there are also three males but only one dominant male and he doesn't hurt anyone.
It is possible I gave them too much shell, but the girls were chewing (I know, but it is the best way to describe) on some tossed empty mussel shells I had in the garden.
Should I be worried?

 

[Miss Lydia]

Is their just normal egg stuff inside? if so then nothing to worry about and I don't think any of our ducks will OD on shells they only eat it as needed. This is probably just a kink in the system. If it's thick all the way through if cut then it could be a lash egg.

 

[feyhope]

I peel the skin off it is drying to a paper consistancy. The egg itself is covered in albumin?

 

[feyhope]

Miss Lydia, yes, normal egg.
Thank you
I had to look up lash egg (yuck)
Again thank you,
You guessed correctly
I thought I had overdosed them on shell, duh on me

 

[DiYMama540]

Probably just a winter kink. Is this the only strange egg you've found?

 

[feyhope]

Probably just a winter kink. Is this the only strange egg you've found?

Yep, it is normal inside.

 

[Miss Lydia]

Any weird egg send up a red flag, and is always a relief when we find it's normal. This duck could be at end of her laying cycle too. Especially if she's been laying non stop. I put this in my Bookmark so I have it handy.

https://www.backyardchickens.com/articles/common-egg-quality-problems.65923/

 

[Eggcessive]

According to this link an egg within an egg is due to reverse peristalsis when an egg inside the oviduct goes backward, and while a second is being formed it will envelope that egg complete with it’s own shell and albumen:
https://thefrugalchicken.com/weird-chicken-eggs/