I've been getting bloody eggs occasionally for a while, I've suspected it was the same bird because the color of the shells is fairly similar. She's one of my 4 EEs, and they all lay slightly different shades of green. I came home this morning and heard a new noise coming from the nesting box. I looked in and she was standing up, very tense and making a high pitched cluck cluck cluck noise and was about done laying an egg. She looked to be in pain, and the egg had blood on it, so I picked her up and looked at her vent. There was quite a bit of blood, and just before she seemed to come to and squirmed out of my grip, I saw what looked to be a bit of pus coming out. Any ideas what's going on? They get free-feed oyster shell and all of their egg shells back, but I've found some eggs without shells. None of the green shelled eggs have been thin.