Flat sided, crinkly eggs

[rkinley]

Got these 2 weird eggs today so 2 hens have whatever is causing this. All but 2 hens are one year as of today. The others are 3-4 years (I have 17). They all look healthy. We have had super excessive rain this year and the run is a swamp. We put lots of hay down in the coop and that’s dry but they mostly stay outside. All have been laying perfect eggs for the most part until now. Any ideas?

 

[BlueBaby]

Got these 2 weird eggs today so 2 hens have whatever is causing this. All but 2 hens are one year as of today. The others are 3-4 years (I have 17). They all look healthy. We have had super excessive rain this year and the run is a swamp. We put lots of hay down in the coop and that’s dry but they mostly stay outside. All have been laying perfect eggs for the most part until now. Any ideas?

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

 

[Offshoreorca]

Can happen sometimes if they experience a stressful event while the egg is being coated! Or other things too as per the link above.