[LucyEgg]

My 2 yr old buff has started laying a soft shelled egg, inside is lots of White and in the middle of that is a perfect hard shelled egg. She dosent lay very often, maybe 15/20 in her life but now these ones are more common. She has oyster shell, and free ranges in the garden 6ish hrs a day. She is the picture of health.
Is this normal ?