What The-

[ChocolateWingTheRooster]

So, I was planning to eat the big egg from yesterday (

) but when I cracked it open... this happened...

Anyone know what happened?!?! What did my chicken lay?!

 

[aart]

Pretty rare that.
What happens is a fully shelled egg 'backs up' the tract and gets more albumen and membrane, and sometimes another yolk, then gets shelled again.

Don't think it's explained in this excellent video, but it's worth watching regardless:

 

[DobieLover]

So, I was planning to eat the big egg from yesterday (View attachment 1907600) but when I cracked it open... this happened...
View attachment 1907601 View attachment 1907602
Anyone know what happened?!?! What did my chicken lay?!

It looks like an egg in an egg.
One of my poor pullets laid one too. But the outer egg didn't quite close the tip of the shell. And the inner egg didn't have a shell at all.
Open up the smaller egg and it will likely have the yolk and some albumen.
The outer egg of the one my pullet laid had funky looking albumen and I ended up popping the inner egg while I was examining it, but the inner egg looked fine other than lacking a hard shell.

 

[ChocolateWingTheRooster]

@aart and @DobieLover , Thanks! It was an egg inside of an egg! Just the inner egg had a yolk though.

 

[chrissynemetz]

Isn't it wild what crazy eggs pullets can lay while they're still working out the kinks!

 

[ChocolateWingTheRooster]

@chrissynemetz yeah! One of my other chickens layed a really tiny egg...