One of my ex-batt girls has today produced what I can only describe as a yolk type object in the nest box. I have seen a few of these before among their droppings but much smaller. This is about the size of a yolk, looks like a hard boiled yolk and feels like rubber. No one is unwell or egg bound. I'm used to odd shells, thin shells, half shelled eggs, eggs with no shells but this was really strange. Has anyone else seen anything like it?
![Confused](https://www.growfruitandveg.co.uk/grapevine/core/images/smilies/confused.gif)
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