What is going on with these hens! Twice this week we have gotten 23 eggs out of 22 hens! Both times there were 1-2 soft shelled eggs layed that day (I counted those). Is there some reason out hens are doing this? They get layer mash, free choice oyster shell, treats (scratch, day old bread & table scraps) and free range our 4 acres. The scratch and day old bread given as treats on rainy days when they are stuck in the barn and table scraps whenever we have them. They are just under 1yr old and have been laying 16-18 eggs per day all winter. Should I be worried about all the soft shells???