What his this? (Sorry, gross)

[eat beef]

Not sure if this is the correct place to post this, but…

when locking the birds up for the night, we found this in the lay box. Anyone ever see anything like this before?

 

[Wyorp Rock]

Do you still have it?
Can you dissect it a bit more and take photos?

First impression is Intact follicle(s) in a membrane, but I would like to see more if possible.