Bumpy egg - why is my hen laying eggs like this?

[bittenbythechookbug]

My cream legbar hen has started laying weird eggs. Yesterday her egg had ridges around the middle but today's egg is even worse. Anybody know what's causing it?

 

[nuthatched]

https://www.backyardchickens.com/articles/common-egg-quality-problems.65923/
Never seem this personally, but here's information on it.

 

[Purelychicks]

My cream legbar hen has started laying weird eggs. Yesterday her egg had ridges around the middle but today's egg is even worse. Anybody know what's causing it?

https://poultrykeeper.com/egg-problems/wrinkled-egg-shells/ read this article

 

[aart]

https://www.backyardchickens.com/articles/common-egg-quality-problems.65923/
Never seem this personally, but here's information on it.

I have had this, my first flock had some kind of respiratory issue and one winter a couple were laying these. It cleared up later.

https://poultrykeeper.com/egg-problems/wrinkled-egg-shells/ read this article

I don't buy the "thin albumen" theory in this article.

 

[bittenbythechookbug]

Seems like they're termed corrugated eggs. My legbar is supposed to be only 15 months old and as far as I know hasn't had any respiratory problems since I first got her 6 weeks ago. I call her Mouse since she was so timid and would run and hide whenever she saw me. She is slowly improving and will feed with the other 4 in the flock now when I throw treats.