Has anyone experienced this with their hens? Our Araucana, Omelette, is about 30 weeks old, started laying at 20 weeks. This is assuming the hatchery sent her to us as a true new pullet -- 9 weeks old. The last 3 eggs she has laid have had a thick central ring on the outside of the egg. Inside they look fine. Her yolks tend to be large and somewhat paler than our other 3 hens (Buff Orpington, Custard; Barred Plymouth Rock, Souffle; Rhode Island Red, Fritatta). She seems happy and healthy looking and I haven't noticed any strange poop. but I don't want to miss something that could be going on with her internally. They are fed organic layer mash, organic layer scratch, a handful of freeze dried meal worms (not from China ), fresh arugula or fresh spinach every day and any other cut up vegetables that are on our menu for the day. Also, on occasion, a handful of Garden Delight (purchased at the local Feed Store) when they scream at me when I am trying to leave the house . They do not forage as our grass is sprayed with insecticide occasionally, hence the meal worms. I'm thinking maybe she is getting too much of something? not enough of something? or am I just obsessing? Any knowledge or advice you can share would be appreciated. Thank you in advance.