Fairy egg? Lash egg?

[Zuberanne18]

I don't know what it is but I'm pretty sure it isn't a chicken egg.

I think you might be right. I’m really hoping it’s not

 

[BlockDogRq]

If the outside is soft, it's probably a mushroom, but it's an egg, a very old egg. It looks like an egg that's maybe 6-8 months old. If the yolk has hardened and that brown stuff is there, it looks like a 5-year-old egg I came across before. It could be a Stinkhorn. But all the small eggs in the photo look like fairy eggs.

 

[BigBlueHen53]

If the outside is soft, it's probably a mushroom, but it's an egg, a very old egg. It looks like an egg that's maybe 6-8 months old. If the yolk has hardened and that brown stuff is there, it looks like a 5-year-old egg I came across before. It could be a Stinkhorn. But all the small eggs in the photo look like fairy eggs.

Yes, those fairy eggs are mine, not OP's. I posted them for comparison.

 

[BlockDogRq]

Stinkhorns are usually underground. When I was a kid, I was happy to find snake eggs. It turned out they were stinkhorns. I carefully removed them, but later my family told me they were not eggs. It was a huge disappointment for me. Did you dig them out? Were there any eggs nearby? Usually, chickens think they are chicken eggs and lay them next to them. If you have a pullet hen and she has just started laying eggs, they usually don't come out like the ones you have, but they are usually bloody or just yolk. Don't worry too much about it. You won't get a chick out of the egg or expect much from the egg.

 

[Zuberanne18]

If the outside is soft, it's probably a mushroom, but it's an egg, a very old egg. It looks like an egg that's maybe 6-8 months old. If the yolk has hardened and that brown stuff is there, it looks like a 5-year-old egg I came across before. It could be a Stinkhorn. But all the small eggs in the photo look like fairy eggs.

You are probably right on it being a mushroom because my hens have only been laying a couple months