A few summers ago I found a fertilized turkey egg.

I knew it was fertilized because we used it for breakfast.

They have white circles on the yolk when they are fertilized.

But we only have a turkey hen, no males.

So I thought I must be mistaken, it didn't have a growing embryo.

This year I read:

https://en.m.wikipedia.org/wiki/Parthenogenesis

Parthenogenesis occurs naturally in some plants, some invertebrate animal species (including nematodes, water fleas, some scorpions, aphids, some mites, some bees, some Phasmida and parasitic wasps) and a few vertebrates (such as some fish, amphibians, reptiles and very rarely birds). This type of reproduction has been induced artificially in a few species including fish and amphibians.