https://www.thepoultrysite.com/articles/parthenogenesis-embryonic-development-in-unfertilized-eggs-may-impact-normal-fertilization-and-embryonic-mortality
I'll just post this to show it is possible.
A better photo could help, the way eggs can glare doesn't always make that easy. That could be a bull's eye but I'm not sure.
Do a search on Parthenogenesis. As far as poultry goes that happens more in turkeys than chickens but it has been observed in chickens. Is it common? No. Do those...