We just got these hens (3) about three weeks ago. At first, there would be an egg that either didn't have a shell, or a very brittle one. Now just the weird shaped/large one. I hope it's just a 'new layer' thing. The don't appear ill or anything.
I have had the very same giant white egg with a weird shell as in your picture but I think mine is from one of my older white leghorns. She seems to be healthy but every now and again she lays a funky egg. This has been happening for some time now. She is still pretty happy and healthy
I would hope so I have been eating them lol! I wonder if the girls laying these eggs aren't eating enough oyster shell. I always have it available but my chickens are spoiled and don't eat it. They want the good snacks I give them. Who knew chickens could get spoiled