I'd rather naughtily left my mobile chicken coop full of dirty bedding since the chickens moved out from it last year.
There's been no chickens living in it for the last six months and I just hadn't got around to emptying it out, although I had left the pop hole open.
It turns out that when some of my hens were free ranging over the winter one of them was using this to store her eggs! What a waste, but I've only got myself to blame and in the future I'll make sure I'll clean them out as soon as they're empty and to shut the blinking door!
On a plus note I did build this coop big enough for my largest helper to fit in to clean it out!
Where's the weirdest place you've ever found a clutch of eggs?