I have 5 hens that we have raised from chicks and finally 1 of the 5 has begun to lay beautiful blue eggs. Yesterday morning and this morning I found a soft egg shell (brown) from another hen on the floor of the coop. The shell isn't all there, it's more of a half shell and its very soft. I'm concerned that two days in a row we have a chicken that is having eggs that aren't formed properly. The feed we use has added omega 3 as well as calcium so we should be good there and besides the other hen we have lays eggs that are just perfect. Any idea on what is going on and if it will stop?