How long do eggs last outside?

I lived in Mexico where it was very hot as well. We didn't even have a refrigerator and I don't every remember an egg rotting. Perhaps you could at least check them to make sure they're good. I believe they will be fine.

 

Hens can lay eggs for a couple of weeks then incubate them for three weeks without them going bad, as in rotten or bacteria-infected. If bacteria are present in the egg, then they will obviously go bad quicker in the heat than if they are in the fridge.

There are a few things you can do. Gently sniff them. If they smell bad, get rid of them!

You can do a float test. This is where you put them in water and see how they act. The older an egg gets, the more moisture they lose and the air sac gets larger. Eventually they lose so much moisture that the egg will float. An egg will either set on the bottom, float to the top, or stand on end. This does not tell you if the egg is good or bad, but is only an indication of which ones are more suspicious.

If they pass the sniff test and you are not too suspicious of them, you can crack them in a bowl and look at them. Sniff them again. You can pretty easily decide if you want to use them or not.

I'm about to say something that might disgust you. Just because an egg has started to develop does not mean it is not safe to eat. In some cultures, those are a delicacy. Personally I don't eat them, but they are safe as long as bacteria are not present. A fertile egg can develop some in the 80's, let alone the 90's or 100's. If you gather the eggs once a day, you'll never see a problem. But if they stay at those temperatures very long, you might see something when you crack it. If the nest is on the ground in the shade, it might be cooler than you think.

I'd be surprised if a 5 month old rooster were not mating with some hens. That's 22 weeks old. I've had them start trying at 12 weeks and some be successful at 15 weeks with mature hens. Most are not successful at that age. The hens won't let him. But by 22 weeks, he has probably had some successes.

Retraining to lay in the coop. When I find one laying anywhere other than the coop, I lock them all in the coop and run for about a week. It helps to find and remove the other eggs. Usually, but not always, this is long enough for them to get back in the habit of laying in the coop instead of trying to hide a nest. Sometimes, I have to put them back in for another week.