Just now I collected an egg that has dried egg yolk threads all over it. It was laid in the spot that my hen who turns 5 months tomorrow likes to lay hers. I have found only hers there in the past. She's half white leghorn, half RIR. However, this egg I found appears to be that of my Sebright Bantie, who also turns 5 months old tomorrow. They have both been laying for about a week or so. However, I haven't found either chicken's eggs for a couple of days. Do you think this could be a sign the Bantie was eggbound and that an egg cracked inside her, getting on the shell? Or do you think it is possible that the other hen could have laid her egg and the Bantie found it and ate it, prior to laying her own egg? Or could a cat have found it and eaten it and left a bit of yolk on the ground to get on the Bantie's egg? But it is doubtful the Bantie would lay her egg over yolk on the ground? And would a cat eat a whole egg, shell and all? I know chickens will eat shells for the calcium, but I would think a shell would pierce a cat's intestinal track? Does anyone know of the link that has all the pictures of weird eggs on it, like the egg that is my Avatar? I can't find that link. Thanks for your help.