Looks like a chick was being formed inside the hen. Laid without a hard shell.

[Yukonchick]

Wow, I'd find out when the local Vet finishes his shift and show it to him. He would find it interesting too, I would think.

 

[aart]

Did you figure out which hen it came form and if she's layed again?

 

[BeulahBreezes]

Been following this post...want to know what the vet thought this formation might be......

 

[rosegal]

I haven't seen it again and my vet hasn't a clue what it is...she relies on me for most of her chicken information.

 

[Yukonchick]

LOL, sheesh, some doctor she is.

 

[aart]

I haven't seen it again and my vet hasn't a clue what it is...she relies on me for most of her chicken information.

LOL, sheesh, some doctor she is.

At least the vet sounds willing to learn, that can be huge!

 

[rosegal]

She is Canadian trained and they only do 1 month of avian study...

 

[radishgirl]

wow, amazing, hope you find out!