Because we rearranged the coop my hens are laying in new places and today my son found three eggs out in the grass. They can't be too old because we would have noticed them but they can certainly be a couple days old. How long can eggs go outside before you should throw them out? And since we don't know how long these have been out there in the sun - I'm in Texas - should we not chance it? Is there any way to tell if an egg is no longer good?