While checking my coop for eggs the other day, I found what looks like a flattened soft egg. It had a hole in it, which may have been from chickens walking on it, but I don't see any sign of yolk or whites on it. Does anyone have a clue what it is, such as a first attempt at laying an egg or possibly an old snake egg. I realize the snake egg is a bit of a longshot, but I recently opened a new pack of pine shavings and wondered if it could have somehow ended up in the bag. Thank you for the help.