Weird looking eggs from both my chooks.

[mhainz]

Hi there.
I have 2 chickens; one a black Australorp and the other an Australorp / something else cross.
They are both about 2 years old and are great little layers.
Recently though I've gotten the odd weird looking egg. At first I thought it was just the one hen but today they both laid these unusual eggs. See pics.

Any idea what could be causing this? Are the eggs coming out slightly soft and then getting this pattern before the shells harden?

Just really curious. Thanks.

 

[Pork Pie]

This link may be interesting

http://www.backyardchickens.com/a/common-egg-quality-problems

 

[TelfTheElf]

Hi
I get this problem quite a bit.
I'm wondering if it is where the egg is laid and it kind of crumples a bit when it hits the ground.

 

[mhainz]

This link may be interesting

http://www.backyardchickens.com/a/common-egg-quality-problems

Thank you. The eggs ARE quite large so I'll crack one open to see if its a double yolk.

 

[aart]

Any idea what could be causing this? Are the eggs coming out slightly soft and then getting this pattern before the shells harden?

Eggs come out as hard as they are going to be.

These is called wrinkled or corrugated shell.
I had them in birds that had slight respiratory issues.