I did a quick search and found nothing on this so here goes. We got our first chicks almost exactly one year ago and about one week ago egg production went down on all my birds. Health is good so i figured they were molting. To my suprise one of our EE laid an egg that had another full, hard shelled egg in it. The outer shell of the outside egg was like the stretchy liner with no hard shell and was filled with egg white but no yolk. The insided egg was a regular blue/green hard shelled egg. I didn't trust the inside egg so I cracked it open and it "may" have had a double yolk. Any one ever hear of this? I did take video and will try to post.