Duck egg

[Vanessa robb]

Can anyone pleas tell me what this it was later last night much larger than normal and the shell has a funny smell thank you

 

[Jpat]

No pictures to see

 

[Vanessa robb]

 

[emmec19]

Whoa, weird!

 

[DuckyDonna]

I can't wait until someone tells us what this is!

 

[TashaFrancois]

Kind of looks like a calcium buildup but I’m interested to know too. Especially about an uncracked egg being smelly.

 

[Miss Lydia]

Is the shell thin. looking at it looks like it might be thin shelled. And might be calcium buildup

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