Strange egg

[Hasgrits68]

I have a hen in my flock who is consistently laying a hard but cricnkleled egg. Any ideas what's causing this? Bad reproduction? Disease? Nutrition?

 

[Yorkshire Coop]

It looks like corrugated shell, check out this article ~ https://www.backyardchickens.com/a/common-egg-quality-problems

#13 covers corrugated shell.

 

[Hasgrits68]

It looks like corrugated shell, check out this article ~ https://www.backyardchickens.com/a/common-egg-quality-problems

#13 covers corrugated shell.

Thanks! This helps a lot