On Sunday, little Poppy was a bit lethargic. She spent a lot of time lying around rather than digging and feeding. I was concerned - she hadn't laid an egg, and I was afraid she was egg-bound.
I read up on what to do, and discovered I should smear KY jelly or liquid paraffin round her vent, then gently squeeze her stomach till the egg started to appear. (No KY in the house, who needs it with Vincent to dream about, but luckily I use liquid paraffin regularly for my old boy Shelley to, well, lubricate his bowels. Sorry.)
I was ready to perform surgery on Monday morning, or else whisk her off to the vet's. Instead, I was greeted with the reason why she'd had such problems laying the day before:

Poor little love, she isn't a big hen. No wonder chickens cluck a lot when they are laying! I bet this one is another double yolk.